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249 Cards in this Set

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