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44 Cards in this Set

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