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249 Cards in this Set
- Front
- Back
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Input
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Any data and instructions entered into the memory of a computer.
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Data
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A collection of unprocessed test, numbers, images, audio, and video.
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A Program
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A series of instructions that tells a computer what to do and how to do it.
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Command
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An instruction that causes a program to preform a specific action.
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User Response
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An instruction a user issues by replying to a question displayed by a program.
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Input Device
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Any Hardware component that allows uisers to enter programs, commands and user respones into a computer.
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Keyboard
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An input device that contains keys users press to enter data and instructions into a computer. Includes the alphabet, punctuation marks and other basic keys.
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Enhanced keyboard
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A keyboard with 12 function keys along the top and other special keys.
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Function Key
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Keys programmed to issue commands to a computer.
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Insertion Point
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A symbol on the screen, usually a blinking verticle bar (cursor) that indicated where that next character you type will be displayed.
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Input Device
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Any Hardware component that allows uisers to enter programs, commands and user respones into a computer.
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Keyboard
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An input device that contains keys users press to enter data and instructions into a computer. Includes the alphabet, punctuation marks and other basic keys.
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Enhanced keyboard
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A keyboard with 12 function keys along the top and other special keys.
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Function Key
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Keys programmed to issue commands to a computer.
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Insertion Point
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A symbol on the screen, usually a blinking verticle bar (cursor) that indicated where that next character you type will be displayed.
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Dvorak Keyboard
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All of the most used keys are in the center of the keyboard. Can increase typing speed 20%
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Number of keys on a notebook keyboard
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85
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Ergonomics
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Incorporating comfort, efficiency, and safety in the design of the workplace.
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Pointing Device
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An input device that allows a user to control a pointer in the screen. (Mouse)
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Mouse
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A pointing device that fits under the palm of your hand confortably. Most widely used pointing device.
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Mechanical Mouse
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A mouse with a rubber or metal ball on its underside.
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Optical Mouse
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Uses devices that emit and sense light to detect the mouse's movement.
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Trackballa
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A stationary pointing device with a ball on its top or side.
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Touchpad
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A small, flat, rectangular pointing device that is sensitive to pressure and motion.
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Pointing Stick
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A pressure sensitive pointing device shaped like a pencil eraser that is positioned between keys on a keyboard
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Joystick
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A verticle lever mounted in a base.
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Wheel (input device)
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A steering-wheel-type input device.
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Gamepad
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Pointing device that controls the movement and actions of players or objects in videogames.
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Lightpen
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A handheld input device that can detect the presence of light.
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Touch Screen
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A touch sensitive deisplay device. Users interact with the device by touching areas of the screen.
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Pen Input
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users draw, write, and tap on a flat surface to enther input.
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Stylus
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A small metal or plastic device that looks like a tiny ink pen put uses pressure instead of ink.
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Digital pen
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Slightly larger than a stylus. Some use pressure others a tiny digital camera.
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Handwriting Recognition Software
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Translates written letters and symbols into characters.
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Graphics Tablet
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A flat, rectangular, eletronic plastic board that Architects, designers and others use to create drawings and sketches digitally.
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Voice Input
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The process of entering input by speaking into a microphone.
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Voice Recognition
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The Computer recognizes and distinguished spoken words.
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Speaker-dependant software
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Computer makes a profile of yiur voice, by being trained. One user only.
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Speaker-independant software
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Multi-user voice recognition software.
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Audio Input
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The process of entering and sound into the computer such as speech, musci, and sound effects.
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MIDI, Musical instrument digital interface
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The electronic music industry's standard that defines how digital musci devices represent sounds electronically.
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PRimary input device for a Tablet PC
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Pressure sensitive pen used to write on the surface of the device's screen
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Digital Camera's input
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Take and store photographed images digitally.
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Download
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Transfere a copy of an object.
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Studio camera
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A stationary camera used for professional studio work.
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Field Camera
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A portable professional camera.
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Point-and-shoot camera
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A small, lightweight, low-cost, camera.
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Resolution
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The number of pixles in a display device.
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Pixel
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The smallest element in an electronic image. Picture element.
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Resolution
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The number of horizontal and vertical pixels in a display device
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Optical resolution
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The actual photograph resolution
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Enhanced resolution
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Usually higher than optical resolution, because it uses a special formula to add pixels between those generated by the optical resolution
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Video input
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The process of capturing full-motion images and storing them on a computer storage medium such as a hard drive
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Digital video camera
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Records video as digital signals instead of analog signals.A digital video camera that enables a home or small business user to capture video and still images, Send e-mails with video attachments, add live images to instant messages, broadcast live images of the Internet, and make video telephone calls
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Web cam
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Any video camera that displays its output on a web page
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Types of scanners
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Flatbed, and or handheld, sheet fed, or drum
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Optical scanner
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A light sensing input device that reads printed text and graphics and then translates the results into reform the computer can process
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Flatbed scanner
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Similar to a copy machine except it creates a file of the document in memory and said of the paper copy.
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OCR optical character recognition software
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Reads and converts text documents into electronic files
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Image processing
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Capturing, storing, analyzing, displaying, printing, and manipulating images
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Optical reader
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In a device that uses it light source to read characters, marks, and codes and then converts them into digital data.
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Optical mark recognition
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Technology that reads hand drawn mark such a small circles or rectangles. Optical character recognition software.
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Barcode reader
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an optical reader that uses laser beams to read bar codes by using light patterns that passed to the barcode lines
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Bar code
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And identification code that consists of a set of vertical lines and spaces in different widths
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RFID (radio frequency identification)
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Technology that uses radio signals to communicate with a tag placed in or attached to an object, an animal, or a person.
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Magnetic stripe card reader
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Emacs strike reader, reads the magnetic stripe on the back of credit cards, entertainment cards, bank cards, and other similar carts.
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Magnetic ink character recognition MICR
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Devices that read text printed with magnets highest Inc.
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Data collection device
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Obtains data directly at the location where the transaction or then sticks place.
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Terminal
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Consists of a keyboard, a monitor, a video card, and memory. These components are often housed in a single unit.
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Point of sale terminal
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POS terminal records purchases, processes credit cards or debit cards, and updates inventory.
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Automated teller machine
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A self-service banking machine that connects to a host computer through a network.
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Biometric identifier
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A physiological or behavioral characteristics that are used to identify people
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Smartcard
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Comparable in size or credit card or ATM cards, stores the personal data on it and microprocessor embedded in the card. Used to store fingerprints, Iris, retina, and other biometric data.
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Output
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Data that has been processed into a usable form.
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Types of Output
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Text, Audio, Video, Graphics output.
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Text
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Memos, announcements, press releases, reports, advertisements, newsletters, envelopes, mailing labels, and e-mail messages.
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Graphics output
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Logos, charts, drawings, clipart, and photographs
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Audio output
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Musical accopmpaniments, audio clips.
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Video output
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Output in video form.
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Output device
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Any type of hardware component that conveys information to one or more people.
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Display device
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And output device that usually conveys text, graphics, and video information.
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Softcopy
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information on a display device
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Monitor
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A display device that is packaged as a separate a peripheral used to display output.
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LCD monitor
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A desktop monitor that uses a liquid crystal display to reduce images
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Digital video interface
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Enables digital signals to transmit directly to the LCD monitor
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SVGA
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Super video graphics array
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Plasma monitor
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A display device that uses gas plasma technology, which sandwiches a layer of gas between two glass plates.
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Digital television
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DTV. Provides crisper, high quality output on LCD or plasma televisions.
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HDTV
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High-definition television. The most advanced form of television, working with digital broadcast signals transmitting digital sound, supporting widescreen, and providing resolutions of up to 1920 by 1080.
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CRT monitor
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A desktop monitor that contains a cathode-Ray tube.
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Energy Star program
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This program encourages manufacturers should create energy-efficient devices that require little power when they are not in use.
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Refresh rate
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A CRT monitors refresh rate, which is expressed in hertz, should be fast enough to maintain a constant, flicker free image.
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Printer
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And output device that reduces text and graphics on a physical medium such as paper or transparency film.
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Nonimpact printer
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Forms characters and graphics on a piece of paper without actually striking the paper. Examples: inkjet printers, photo printers, laser printers, thermal printers, mobile printers, and label and postage printers.
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Inkjet printer
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A type of nonimpact printer that forms characters and graphics by spraying tiny drops of liquid ink onto a piece of paper
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Dots per inch dpi
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Printer resolution is measured by the number of dots per inch, a printer can print.
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Ppm pages per minute
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the speed of an inkjet printer
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Photo printers
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A color printer that produces photo lab quality pictures
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Laser printer
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A high-speed, high-quality nonimpact printer, that uses lasers to print images.
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Thermal printers
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Generates images by pushing electrically heated pins against heat sensitive paper
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Dye sublimation printer
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Uses heat to transfer color dye to specially coated paper
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Mobile printer
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A small, lightweight, battery-powered printer that allows a mobile user to print from a notebook computer, tablet PC, PDA, or smart phone.
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Label printer
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A small printer that prints on an adhesive type material that can be placed on a variety of items such as envelopes, packages, CDs, DVDs, audio cassettes and photographs.
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Postage printer
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A special type of label printer that has a built in digital scale and prints postage stamps
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Plotter printer
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Sophisticated printers used to produce high-quality drawing such as blueprints, maps, and circuit diagrams
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Large format printer
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A printer that creates photorealistic quality color prints
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Impact printer
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A printer that forms characters and graphics a piece of paper by striking a mechanism against an inked ribbon that physically contact the paper
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Dot matrix printer
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An impact printer that produces printed images when tiny wire pins on a printhead mechanism strike and inked ribbon.
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Line printer
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A high-speed impact printer that prints an entire line at the time
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Audio output device
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A component of a computer that produces music, speech, or other sounds, such as beats. Commonly used audio output devices are speakers, headphones, and earphones
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Speakers
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And output device that emits sound
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Headphones
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Small speakers worn on the head placed on the outside of the ear
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Voice output
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Output that occurs when you hear a person's voice or when the computer talks to through the speakers of a computer
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Fax machine
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A device that codes and encodes document so that they can be transmitted over telephone lines
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Multifunction peripheral
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A single device that looks like a copy machine, but provides the functionality of a printer, scanner, copy machine, and perhaps a fax machine
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Data projector
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A device that takes the text and images displayed on a computer screen and projects onto a larger screen so an audience can see the image clearly
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Storage
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Holds data, instructions, and information for future use.
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Storage medium
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The physical material on which a computer keeps data, instructions, and information
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Capacity
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the number of byte's or characters a storage medium can hold
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Storage device
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The computer hardware that records and or retrieves items to and from storage media
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Writing storage
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The process of transferring data, instructions, and information from memory to as storage medium
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Storage
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Holds data, instructions, and information for future use.
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Storage medium
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The physical material on which a computer keeps data, instructions, and information
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Capacity tab,
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the number of byte's or characters a storage medium can hold
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Storage device
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The computer hardware that records and or retrieves items to and from storage media
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Writing storage
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The process of transferring data, instructions, and information from memory to as storage medium
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Reading
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The process of transferring these items from a storage medium into memory
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Access time
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Measures the amount of time it takes a storage device to locate an item on a storage medium or the time required to deliver an item from memory to the process are
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Transfer rate
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The speed at which data, instructions, and information transfer to and from a device
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Magnetic disks
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Use magnetic particles distort items such as data, instructions, and information on a disk surface
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Formatting
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The process of dividing the disk into tracks and sectors, so that operating system can store and locate data and information on the desk.
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A track
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In narrow recording band that forms a full circle on the surface of the disk.
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Sectors
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The hard disk's storage locations consist of small arcs on a disk divided up into pie shaped sections:
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Cluster
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The smallest unit of disk space that stores data and information
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Hard disk
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A storage device that contains one or more in flexible, circular platters that magnetic restore data, instructions, and information
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Perpendicular recording
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Hard disks all lying the magnetic particles vertically, or perpendicular to the disk surface, making much greater storage capacities possible
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A track
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In narrow recording band that forms a full circle on the surface of the disk.
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Sectors
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The disks storage locations consist of pie shaped sections, which brake distracts them to small arcs called:
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Cluster
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The smallest unit of disk space that stores data and information
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Hard disk
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A storage device that contains one or more in flexible, circular platters that magnetic restore data, instructions, and information
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Perpendicular recording
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Hard disks all lying the magnetic particles vertically, or perpendicular to the disk surface, making much greater storage capacities possible
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Characteristics of a hard disk
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The capacity, pleasures, read and write heads, cylinders, sectors and tracks, revolutions per minute, transfer rate, and access time of a hard disk
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Read/write head
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The mechanism that reads items and rights items to the drive as it barely touches the disks recording surface
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Cylinder
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The vertical section of attract the passes through all platters
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A head crash
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Occurs when a read/write head touches the service of a platter usually resulting in a loss of data or sometimes of the entire drive
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Disk cache
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Consists of a memory chip on a hard disk that stores commonly used items such as data, instructions, and information
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Characteristics of a hard disk
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The capacity, pleasures, read and write heads, cylinders, sectors and tracks, revolutions per minute, transfer rate, and access time of a hard disk
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Read/write head
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The mechanism that reads items and rights items to the drive as it barely touches the disks recording surface
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Cylinder
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The vertical section of attract the passes through all platters
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A head crash
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Occurs when a read/write head touches the service of a platter usually resulting in a loss of data or sometimes of the entire drive
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Disk cache
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Consists of a memory chip on a hard disk that stores commonly used items such as data, instructions, and information
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Miniature hard disks
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Tiny hard disks, some of which have form factors of less than 1 inch, are found in devices such as audio players, digital cameras, smart phones, and PDAs
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External hard disk
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A separate freestanding hard disk that connects with the cable to a USB port or FireWire port on the system unit
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Removable hard disk
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A hard disk that you insert and remove from other dock or drive
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Hard disk controller
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Its national purpose chip and electronic circuits that control the transfer of Datacom instructions comment information from a disk to and from the system bus and other components in the computer. Controls the interface between hard disk and the system bus.
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Online storage
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A service on the web that provides hard disk storage to computer users, usually for a minimum monthly fee
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Floppy disk
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A portable, it expenses storage medium that consistent with thin circular flexible plastic Mylar fell with a magnetic coating encaseing in a square shape plastic shell
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Floppy disk drive
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A device that reads from and writes on a floppy disk
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Density
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The number of bits in an area on a storage media
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Zip disk
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Type of portable magnetic media that can store front 100 MB to 750 MB of data
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Zip drive
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High-capacity disk drives, developed by a league of corporation that reads from and writes to a zip disk
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Optical disk
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A type of storage media that consists of a flat, round, portable disk made of metal, plastic, and lacquer, that is rich in read by a laser
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Method of storage for optical disk
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Optical disks store items by using microscopic pit's and lands that are in the middle layer of the disc
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Types of optical disks
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CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-R, DVD+R, DVD RW, DVD+RW, and DVD RAM
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CD-ROM
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Compact disk read only memory. Used by software manufacturers to distribute their programs.
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CD-ROM drive
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A device that reads from and writes to a CD-ROM
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A picture CD
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A single session CD-ROM that stores digital versions of a single roll of film using JPEG file format.
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CD-R
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Users are able to write on this disc, but not erase.
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CD-RW
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An eraseable multisession disc yuou can wrtie on multiple times.
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DVD-ROM
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digital versatile disc read only memory. Stores memory on two layers.
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Blue-ray disc
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A new form of DVD
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Tape
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And magnetic liquid at ribbon of plastic capable of storing large bounce of data and information at the low cost.
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A tape drive
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A device that reads and writes data and information on a tape
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Sequential access
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Refers to reading or writing data consecutively
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Direct access
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The device can locate a particular data item or filed immediately, without having to move consecutively through items stored in the front of the desired data item or file
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PC card
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Instead credit card sized device that fits into a PC card slot. Add storage come additional memory, fax modem, networking, sound, and other capabilities to the desktop or notebook computer
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Flash memory card
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A solid-state media: consists entirely of electronic components and contains no moving parts.
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USB flash drive
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A flash memory device that plugs into a USB port on the computer or mobile device
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Smartcard
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Similar in size to a credit card or ATM card, stores data on a thin microprocessor embedded in the card. Smart cards contain a processor and have input, process, output, and storage capabilities
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Microfilm and microfiche
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Stores microscopic images on a roll or she to fill
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Communications
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Describes a process in which two or more computers are devices transfer data, instructions, and information
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Sending device
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It device that initiates an instruction to transmit data, instructions, or information
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Communications device
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A device that connects the sending device to a communications channel
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Communications channel
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Eight channel or transmission media on which the data, instructions, or information travel
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Communications device
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A device that connects communications channel to a receiving device
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Receiving device
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A device that except the transmission of data, instructions, or information
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Wireless messaging services
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Text messaging, wireless instant messaging, and picture messenger are three techniques of:
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Text messaging
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A short text message sent via cell phone
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Wireless instant messaging
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Real-time Internet, intranet dedication service that allows wireless mobile devices to exchange messages with one or more to mobile devices or online users
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Picture messaging
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Users send graphics, pictures, video clips, and some files as well a short text messages
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Wireless Internet access point
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A location where people connect wirelessly to the Internet
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A G3 network
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Uses cellular radio technology to provide users with high-speed wireless Internet connections, as long as they're the networks range
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Cyber café
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A coffeehouse, a restaurant that provides personal computers with Internet access to its customers
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GPS
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Global positioning system. It navigational system that consists of one or more earth based receivers that excepts and analyzes signals sent by satellites in order to determine a receiver's geographic location
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Collaboration
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To work on line with other users connected to a server
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Online meeting
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Users share documents with others in a real-time meeting setting
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Voicemail
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Allows someone to leave a voice message for one or more persons
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Web services
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Standardize software that allows programmers to create applications that can indicate with other remote computers over the Internet or on an internal business network
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Network
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A collection of computers and device connected together via communications devices and transmissions media
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Reasons businesses use of that work
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To facilitate communications, to share hardware, share data and information, share software, and transfer funds
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LAN
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A local area network is a network that connects computers and devices in a limited geographic areas such as the home, school computer laboratory, or office building
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Wireless LAN
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A LAN that uses no physical wires
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MAN
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Eight metropolitan area network is a high-speed network that connects local area networks that a metropolitan area and handles the bulk of communications activity across that region.
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WAN
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A wide area network is a network that covers a large geographic area using communications channels that combine many types of media such as telephone lines, cables, and radio is
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Network architecture
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The design of computers, devices, and media audit network
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Client/server network
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One or more computers act as a server and the other computers on the network request services from a server
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Server
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A host computer, controls access to the hardware, software, and other resources on the network and provides a centralized storage area for the programs, data, and information
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Clients
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The other computers and mobile devices on the network that rely on the server for its resources
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Peer-to-peer
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A simple, inexpensive network that typically next fewer than 10 people. Each computer has equal response was his and capabilities for the network
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Internet peer-to-peer
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At Internet or network on which users access to chose hard disk and exchange files directly over the internet
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Network topology
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The layout of the computers and devices in the communications network.
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A bus network
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A network that consists of a single central cable, on which all computers and other devices connect.
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A ring network
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A cable forms a closed loop with all other computers and devices arranged along the ring form the network
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Star network
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A network in which all the computers and devices on the network connects to a central device, thus forming a star
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Hub
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The common connection point for nodes on the network
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Intranet
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An internal network that uses Internet technologies
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Extranet
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A network that allows customers and supplies to access part of a companies intranet
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Ethernet
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Eight network standard that specifies no central computer or devise on the network should control when data can be transmitted
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Token ring
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A standard that specifies computers and devices on the network share or pass a special signal, called a token, edit on directional matter, and in a preset order
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Token
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A special series of bits that function as a ticket on a token rings network
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TCP/IP
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A network standard specifically, a protocol that defines how messages are routed from one end of a network to another, ensuring the data arrives correctly
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WiFi
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802.11, a series of network standard that specifies how to wireless devices communicate over the air with each other. Uses similar techniques to ethernet
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Bluetooth
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A network standard, specifically a protocol that defines how to prove to devices use short-range radio waves to transmit data
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IrDA
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A standard for transmitting data wirelessly up to a other devices via infrared waves
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RFID
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Radiofrequency identification, a standard specifically a protocol that defines how a network uses radio signals to communicate with the tag placed in or attached to an object in animal or a person.
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WIMax
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802.16, A newer network standard developed by IEEE that identifies how wireless devices communicate over the air in a wide area
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WAP
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Wireless application protocol, a standard that specifies how some wireless mobile devices such as smart phones and PDAs can display the continent of Internet services such as the Web, e-mail and other web pages
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Communications software
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Consists of programs that help users establish a connection to another computer and network, manage them transmission of data, provide an interface for users to communicate with one another.
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Public switched telephone network
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PSTN. A worldwide to telephone system that handles voice oriented telephone calls
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Dial-up line
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Temporary connection that uses one or more analog telephone signals for communications specifically to the Internet.
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Dedicated lines
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A type of always bond the communication that is is established between two communications devices. Better than dial-up.
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ISDN lines
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Integrated services Digital network. Provides faster transfer rates than dial-up telephone lines
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DSL
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Digital subscriber line, a popular digital line alternative that transmits at fast speeds on existing standard copper telephone cable
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T-carrier line
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Danny's of several types of long-distance telephone lines that carry multiple signals over a single communications line
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ATM
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Asynchronous transfer mode. A service that Kerry's voice, data, video, and multimedia at very high speeds. Telephone networks cover the Internet, and other networks with large amounts of traffic use ATM
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Communications devise
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Any type of hardware capable of transmitting data, instructions, and information between ascending device and receiving a device
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Dial-up modem
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The communications device that performs the conversion from a digital to analog signal.
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DSL modem
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Sends digital data and information from a computer to a DSL line and receives digital data and information from a DSL line.
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Cable modem
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Sometimes called a broadband modem, is a digital modem that sends and receives digital data over the cable television network.
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Wireless modem
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Allows access to the Internet wirelessly from a net notebook computer, a PDA, a smart phone, or other mobile devices
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Network card
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In adapter card, PC card or flash card that enables a computer or device to access the network.
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Wireless access point
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Essential communications device that allows computers and devices transfer data wirelessly amongst themselves transfer data wirelessly to a wired network.
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Routers
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A communications device that connects multiple computers or other routers together and transmits data to its correct destination.
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Home network
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Home users connecting multiple to devices and computers together
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Types of wired home networks
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Ethernet, powerline cable network, phone line network.
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Ethernet home network
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Requires that each computer have built a network capabilities or contain a network card, and the computers are hardwired together.
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Powerline cable network
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A network that uses the same lines that bring electricity into the house
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Phone line network
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An easy to install an inexpensive network that uses existing telephone lines in the home.
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HomeRF network
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Uses radio waves is a cable to transmit data in a home network.
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