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44 Cards in this Set
- Front
- Back
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a machine that performs the 4 basic operations of the information processing cycle
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computer
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what are the 4 basic operatios of the computer?
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1.input
2. processing 3. output 4. storage |
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collection of related components that are designed to work together
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computer system
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what does a computer system include?
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hardware and software
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list of instructions that tell the computer how to perform the 4 basic operations to accomplish a task
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program
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all the programs that give the computer its instructions
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software
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what are the 2 categories of software?
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system software and application software
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getting data into the computer
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input
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unorganized raw materials made up of words, numbers, images, or sounds
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data
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what are the input devices?
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keyboard, mouse, microphone, digital cameras
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what does RAM stand for?
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random access memory
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what does CPU stand for?
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central processing unit
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computers trandform data into _____.
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information
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what are the processing devices?
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motherboard, expansion card, cpu, and ram
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what are the output devices?
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monitor, printer, speakers
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moving data between computers
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communication
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2 or more computer systems that are connected
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network
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a device that enables the computer to access other computers
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modem
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enable computers to connect to a computer network
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communication devices
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using unlicensed software or illegaly sharing music or movies
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digital piracy
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make programs available for network users
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servers
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handle the computing for small corporations
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minicomputers
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handle gigantic processing jobs for large corporations or agencies
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mainframe
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ultra-fast and handle huge amounts of scientific data
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supercomputers
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special keyboards can prevent _________.
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carpal tunnel syndrome
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and error or defect in software or hardware that causes a program to malfunction
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bug
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behavior associated with moral beliefs
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ethics
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requires schools to provide computer access for people with disablities
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Americans with Disabilities Act of 1990
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high capacity, high speed computer. large hard drive. contains a netowrk operating system
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file server
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computers connected to a LAN are called a ______ or ____.
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workstation or node
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what are the 2 types of lans?
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peer to peer and client server
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operating system that supports networking (Windows, Mac OS). additional system software
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networking software
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the physical layout of a LAN
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topology
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when multiple users try to access the LAN at the same time
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contention
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fixed, formalized standards that specify how computers can communicate over a network
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protocol
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total package of protocols that specify how a network functions
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protocol suite
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communcation standards to which modems conform
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modular protocols
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rate at which two modems can exchange data. measure in bits per second (bps)
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data transfer rate
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standard for large and small businesses
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ethernet
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what does wi-fi stand for?
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wireless-fidelity
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WANs have a local access number called a.....
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point of presence
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high capactiy tranmission lines. can be regional, continental, and transcontinetal
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backbones
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how many gigabits can an internet backbone carry?
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2.5 gigabits of data per second
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_______ are used to connect LANs at two or more geographic locations
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wan
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