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50 Cards in this Set

  • Front
  • Back
device that accepts input, processes data, stores data and produces output
computer
whatever is typed, submitted, or transmitted to a computer system
computer input
symbols that represent facts, objects, and ideas
data
the way a computer manipulates data
processing
the 'brain' of the computer where most of the processing takes place
central processing unit (CPU)
the program a computer uses to complete a specified task
software
software that helps a computer control itself to operate efficiently and to keep track of data
operating system
helps users apply the computer to specific tasks, such as writing documents and editing photos
application software
an area of the computer that temporarily holds data waiting to be processed, sotred, or output (volatile)
memory
the area of a computer where data can be left on a permanent basis when it is not in use for processing
storage
results produced by a computer
ex: reports, documents, music
computer output
displays, prints, or transmits the results of processing
ex: printers, speakers, etc
output device
computers connecting to one another
network
depends on a centrally located computer for processing and storage - easy to control, manage, and secure because the hardware is in one place
ex: mainframe
centralized computer network
spreads the processing and storage tasks among many computers - difficult to manage and secure because the location of files, resources, and machines are dispursed
ex: internet
distributed computer network
refers to a microcomputer and all the input, output, and storage devices connected to it
personal computer system (PC)
main circuit boards, CPU, power, storage, etc
system unit
monitor or screen used to view what is going on in the computer
display device
primary input device
keyboard
input device used to manipulate on-screen objects
mouse
hard disk dirve, floppy disk drive, CD/DVD drive, tape drive
storage devices
used to establish internet connection using a telephone line
modem
output device that produces computer generated text or graphics on paper
printer
designed for connecting a computer to a local area network
network card
circuit board that houses all of the essential chips and provides connections between them
motherboard (mainboard)
super-thin slice of semi-conducting material packed with microscopic circuit elements - plugs into the motherboard
integrated circuit (chip)
works with distinct and separate data
1 and 0 only
on or off like a light switch
digital device
works with continuous data
1=00110000
controls a range like a dimmer switch
analog device
used by computers to digitally represent numbers, letters, puctuation marks, etc. - has only 2 digits - 1 and 0
binary digits (bits)
name the three major components of a computer
processor, memory, and storage
the place where programs and data are kept until needed
storage
the place where a program gets moved to from storage when it is started
memory (volatile)
an integrated circuit designed to process instructions - performs the same tasks as a CPU but is very small
microprocessor
temporary holding area for data, application programs, instructions, and the operating system - "waiting room" - requires power to hold data - loses all data when power is removed
random access memory (RAM)
memory circuitry that holds the computers start up routine - permanent and non-volatile - remains in place even when the power is removed - cannot be changed
read only memory (ROM)
instructs computer on how to access the hard disk, find operating system and load it into RAM
ROM BIOS (basic input/output system)
stores data on removable floppy disks - good for portability but bad for speed
1.44 MB
floppy disk drive
main storage device in most systems - lots of storage, fast access to files, economical
hard disk drive
data is stored on magnetic tape - medium storage/slow speed
tape drive
laser light reads data stored on plastic coated discs
CD drive/ DVD drive
writable drive can store data by changing dye colour on disk - permanent
(R) recordable
uses crystal stucture which can be changed - can be repeated many times
(RW) re-writable
storage device that plugs directly into a USB port - works the same as the hard disk, but is small, portable, and durable
also includes to as flash cards or memory cards
USB flash drive
name 5 categories of computers
handheld (PDA)
microcomputer (PC)
minicomputer
mainframe (centralized)
supercomputer
Intel Pentium 4 32-bit processor 2.8 GHz
processor
512 MB 400 MHz (max. 2GB)
amount of memory (RAM)
80 GB HD (5400 rpm)
hard disk drive
56 Kbps
modem
100 Mbps
network card
3.5 1.44 MB
floppy disk drive