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48 Cards in this Set

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  • Back
location in which data, instructions, and information are held for future use.
Storage
electronic components in a computer that store instructions waiting to be executed by the processor, the data needed by those instructions, and the results of the processed data (information)
Memory
electric, electronic, and mechanical components contained in a computer
Hardware
Series of instructions that tells a computer what to do an how to do it, existing on storage media such as a floppy disk or compact disk
Software
Programs that control or maintain the operations of a computer and its devices
System Software
Program that performs specific tasks for users, acting as a business tool
Application Software
Collection of unprocessed items, which can include text, numbers, images, audio, and video
data
series of instructions that tells a computer what to do and how to do it. Also called software
Program
type of communications device that either converts a computer's digital signals into analog signals so the signals can be transmitted over standard telephone lines or converts the analog signals back into digital signals that a computer can process
modem
main circuit board of the system unit, which has some electronic components attached to it and others built into it
motherboard
network that connects computers and devices in a limited geographical area
LAN (local area network)
type of network that convers a large geographic area, such as a city, a country, or the world
WAN (wide area network)
appication software that allows users to access and view webpages
browser
a computer in a network that controls access to the hardware, software, and other resources on the network and provides a centralized storage area for programs, data, and information
server
regional or national provider of access to the internet
ISP (internet service provider)
company that provides Internet access as well as many members-only features
OSL (online service provider)
type of digital dedicated line that transmits data at fast speeds on existing standard copper telephone wiring.
DSL
digital modem that provides high-speed internet connections through the cable television network
cablem modem
type of memory that can be read from and written to by the processor and other devices. Programs and data are loaded into the ____ from storage devices such as a hard disk and remain in RAM as long as the computer has continuous power.
RAM (random access memory)
type of memory that is used to store permanent data and instructions because it is nonvolatile memory
ROM (read-only memory)
potentially damaging program that affects, or infects, an computer negatively by altering the way the computer works without a user's knowledge or permission.
virus
rectangular area of a computer screen that displays a program, data, and/or information
window
portion of software that defines how a user interacts with a computer
user interface
collection of individual programs sold as a single package.
software suite
sequence of keystrokes and instuctions that a user records and saves in an application, allowing users to automate routine, repetitive, or difficult tasks
macro
small quartz crystal circuit that is used by the processor to control the timing of all computer operations
system clock
smallest unit of data a computer can process.
bit
eight bits that are grouped together as a unit. It provides enough different combinations of 0s and 1s to represent 256 individual characters.
byte
circuit board that enhances the functions of a component of a system unit and/or provides connections to peripherals
expansion card
coding scheme used primarily on mainframe computers and high end servers
EBCDIC
most widely used coding scheme to represent data
ASCII
1 million bytes
megabyte (MB)
1 thousand bytes
kb
1 billion bytes
GB
type of memory that loses its contents when a computers power is turned off
volatile
port that can connect up to 127 different peripherals with a single connector type
USB (universal serial bus port)
bar code used by retail and grocery stores to identify an item
UPC (universal product code)
type of high-speed parallel port to which peripherals, such as disk drives and printers can be attached
SCSI port
optical reader technology that permits typewritten, computer-printed, or hand-orinted characters to be read and translated from ordinary documents and into a form that a computer can process
OCR (optical character recognition)
location in a retail or grocery store where a consumer pays for goods or services
point to sale (POS)
technology used by some RAM chips, flash memory chips, and other types of memory chips that provides high speeds and consumes little power by using battery power to retain information even when the power to a computer is turned off.
complementary metal-oxide semiconductor (CMOS)
size of a bus, which determines the number of bits taht a computer can transmit at one time
bus width
high speed expansion bus that connects devices
local bus
duplicate of file, program, or disk that can be used if the original is lost, damaged, or destroyed
backup and why we use it
type of optical disk that uses laser technology to store data, instructions, and information
CD-ROM
Multisession CD onto which useres can record their own items, such as text, graphics, and audio
CD-R
Erasable CD onto which users can write and rewrite data, instructions, and information
CD-RW
extremely high capacity optical disk that is capable of storing
DVD-ROM