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66 Cards in this Set
- Front
- Back
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Bit vs. Byte
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1 byte = 8 bits
1 bit = binary digit = 0 or 1 |
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Robotics
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m
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Data mining
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The process by which great amounts of data are analyzed and investigated to spot significant patterns of trends within the data that would otherwise not be obvious.
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Internet Divide
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m
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Definition of Software
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The set of computer programs or instructions that tells the computer what to do and enables it to perform different tasks.
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What are the 2 types of softwares?
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- Application software actually performs the tasks that users desire. (Photoshop, Microsoft Office etc)
- System software: to control and maintain the hardware and give the user access to resources (Mac OS or Windows XP) |
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Computer
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A data processing device that gathers, processes, outputs, and stores data and information.
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Storage Device
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To save (or store) data or info.
eg) Hard disk drives, floppy disk, and CD and DVD drives. |
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What are the difference between impact and nonimpact printers?
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1. Impact printer
- Dot-matrix 2. Non-impact printer - Inkjet - laser - multifunction |
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Memory devices
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m
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______ is data that has been presented in a fashion.
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Information
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RAM vs. ROM
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Random access memory (RAM) is the primary storage place (volatile).
Read-only memory (ROM) stores data permanently. |
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Motherboard
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A special circuit board in the system unit that contains the central processing unit (CPU), the memory (RAM) chips, and the slots available for expansion cards. It is the largest printed circuit board; all of the other boards(video cards, wound cards) connect to it to receive power and to communicate.
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CPU
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Central Processing Unit:
- Part of the system unit - Brains of the computer - Controls all functions of the computer - Processes all commands and instructions - Perform billions of tasks per seconds |
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Peripheral devices
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Devices that are connected to the computer.
- Monitor -Printer - Mouse |
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Computer Forensics
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The application of computer systems and techniques to gather potential legal evidence; a law enforcement specialty used to fight hightech crime.
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Simulation device
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m
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AI
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Artificial Intelligence:
The science that attempts to produce computers that display the same type of reasoning and intelligence that humans do.(Robots) |
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Nanotechnology
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The science revolving around the used of nanostructure to build devices on an extremely small scale.
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Kilo vs. Mega vs. Giga vs. Tera
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KB: 1,000 bytes
MB: Million bytes GB: Billion bytes TB: trillion (1000 G) bytes |
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Proprietary vs. Copyrighted software
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Proprietary software is a program that is owned and controlled by the company it is created by or for.
Copyrighted Software is |
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System software
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The set of programs that enables a computer's hardware devices and application software to work together; it includes the operating system and utility system.
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Operating system
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OS: System software controls the way in which a computer system functions, including the management of hardware, peripherals, and software.
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Utility system
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m
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Computer platform
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Two main types of PC and Mac. THey use different CPUs, therefore, each system processes info. very differently. ALso their operating systems are different. Mac uses Mac OS, PC uses Microsoft Windows. However, you can perform same types of tasks.
*Computer+CPU: - PC+Intel or AMD - Mac+Motorola |
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Client
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A computer that requests information from a server in a client/ server network (such as your computer when you are connected to the Internet)
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Servers
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A computer that provides resources to other computers on a network (serves multiple clients)
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Cold boot vs. Warm boot vs. Hibernation vs. Standby
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Cold boot: Starting a computer from a powered down or off state.
Warm boot: The process of restarting the system while it's powered on. Hibernation: When a computer is in a state of deep sleep. Stand by mode: When a computer's more power-hungry components to save energy. |
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Application Software
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The set of programs on a computer that helps a user carry out tasks such as word processing, sending email, balancing a budget, creating presentations, editing photos, taking an online course, and playing games.
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Nonvolatile
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Permanent storage, as in read-only memory (ROM).
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Volatile
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Temporary storage, such as in random access memory (RAM); when the power is off, the data in volatile storage is cleared out.
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4 Major functions of computer?
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1. Input data (pictures from camera)
2. Process data (photoshop) 3. Output information (burning CD) 4. Store data and information (save pix) |
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Phishing
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The process of sending email messages to lure Internet users into revealing personal information such as credit card or SSN or other sensitive info that could lead to identity theft.
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Shareware vs. Freeware vs. Groupware vs. Triware
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Shareware: software that enables users to "test" the software by running it for a limited time free of charge.
Freeware: Any copyrighted software that can be used for free. Groupware: Software that helps people who are in different locations work together using tolls such as email, threaded messaging, and online scheduling. Triware: |
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URL
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Universal Resource Locator:
A Website's unique address, such as www.microsoft.com |
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How is a printer's resolution measured?
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DPI
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Software Suite vs. Integrated application
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software suite:
A collection of software programs that have been bundled together as a package (Microsoft Office) Integrated application: A single software program that incorporates the most commonly used tools of man productivity software programs into one integrated stand-alone program (Microsoft Works). |
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How is each Boleon Operator used?
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AND: comtaining all specified words
OR: least one NEAR: specified words and certain number words of each other NOT: exclude +: priority "": exactly it's written *:Wildcard searching |
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Ethical issues faced by the people of a digital society?
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1. Airport doing a full body scan.
2. Trace where you are going on the phone. 3. Facebook is selling your info to amazon and give them all resources and tell your friends what you just bought. 4. Wal-Mart puts a tag on your clothes so you know what clothes, size, and brands. |
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How is computer used in careers?
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1) business : data mining
2) Farming: RFID tags 3) Arts: virtual art 4) medical field: Da Vinci surgery 5) law enforcement: Computer forensics 6) Legal fields: Surveillance cameras 7) Education: Internet 8) Science: Supercomputers 9) Sports: "smartballs" 10) Gaming: 3D animation 11) Home: Robotics 12) Tomorrow: AI |
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What are types of computer hardware?
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Input devices
System unit Output devices Storage devices |
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Input devices (give examples)
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Enter data to be processed
- keyboard - scanner - mouse - touch screen - microphone - digital camera - game controller |
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System unit = 본체 (give examples)
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Cabinet that houses all components
- motherboard - CPU - Memory modules |
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Output devices (give examples)
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Enable us to see or hear the processed information
- monitor - speaker - printer |
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Storage devices
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Enables us to store data or information to be accessed again.
- Hard disk drive - floppy disk - CD/DVD drive - flash drive |
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what is a savvy computer user and consumer?
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-Protecting privacy
- maintaining the computer - Using the Internet wisely - Avoiding hackers and viruses |
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Difference between data and information?
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- Data: Numbers, words, pictures or sounds that represent facts or ideas
- Info.: Data that has been organized in a meaningful fashion |
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What different kinds of computers are there?
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- PDAs are small, one-task-at-a-time computers, that serve highly mobile users.
- Servers are powerful computers that control networks and often use Unix as an operating system. - Mainframes are large, expensive multifaceted computers designed to handle thousands of users. - Supercomputers are large, fast computers assigned to concentrate on specific scientific tasks. - Embedded computers are specially designed computer chips that reside inside other devices such as your car or your electronic thermostat in your home. |
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What are the 2 types of monitors and their differences?
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- Cathode Ray Tube (CRT)
Less expensive Use more space Use more energy Better viewing angles - Liquid Crystal Display (LCD) |
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How is the resolution size affect the size of icons?
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Less the resolution size, the bigger the icons
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What is Refresh rate?
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Speed at which the screen is refreshed (60Hz, 75Hz)
(Faster rate equals less flicker) |
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How is the speed of printers measured?
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PPM (pages per minute)
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What are the difference between inkjet and laser printers?
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Inket
- less expensive device - more expensive per page in B&W Laser - More expensive device - Less expensive in B&W |
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What is System unit and what does it contain?
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Box that contains the central electronic components of the computer such as:
- CPU/RAM/motherboard - Expansion cards - power supply - storage devices |
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What is motherboard and what's on it?
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Largest printed circuit board (it's the "mother" of all boards)
- CPU - Memory modules (RAM) - Expansion card (added functionally) |
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Hard Disk Drive
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- Stores data and program instructions
- Permanent (nonvolatile) storage - Storage capacities up to 250 GB and higher - Transfers data in milliseconds |
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What's on the front of the system unit?
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- drive bays
- memory card reader - power button - Floppy drive |
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What's on the back of the system unit?
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- Ports:
Serial USB Connectivity |
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What's inside the system unit?
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- power supply
- hard disk drive - mother board - CPU - Expansion cards |
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Types of online annoyances?
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Spam: electronic junk mail
Pop-ups: intrusive advertising cookies: tracking user's browsing habits Spyware: programs that collect data from a user's computer Malware: software that has a malicious intent Phishing and Hoaxes: Ruses to fool and maybe steal from users |
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What is the abbreviation of URL?
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Uniform Resource Locator
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What program scans Web pages in search engines?
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Spider or Web Crawler
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Correct way to evaluate Web Sites?
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- who is the author of the article?
- what audience is the site geared toward? - is the site biased? - is the info. current? - are links available? |
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List the Internet Connection Options from fastest to slowest
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DSL(SDSL)>Cable>Satellite>DSL(ADSL)>Dial-up
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What is the difference between ISP and OSP?
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ISP
- Internet service provider - Provide user access to the Internet - National,regional or local companies OSP - Online service provider - Provide online proprietary - AOL, MSN |
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Web
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Collection of documents that is part of the Internet
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