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30 Cards in this Set

  • Front
  • Back
system unit
a case that contains electronic components of the computer used to process data
motherboard
main circuit board of the system unit
chip
a small piece of semiconducting material usually silicon on which integrated circuits are etched
CPU
central processing unit, interprets and carries out the basic instructions that operate a computer
multi-core processor
a chip with two or more processing cores
control unit
the component of the processor that directs and coordinates most of the operations in a computer
ALU
arithmetic logic unit, performs arithmetic comparison, and other operations
system clock
controls the timing of all computer operations
clock speed
measured number of ticks per second pace of the clock
binary system
a number system that has only 2 digits, 1 and 0
bit
the smallest bit of data a computer can process
byte
8 bits grouped together
memory
consists of electronic components that store instructions
volatile
memory that is lost when the computer is turned off
nonvolatile
does not lose content when computer turns off
RAM
random access memory
ROM
read only memory
memory module
a small circuit board
memory slot
hold memory modules on the motherboard
cache
helps speed the processes of the computer
L1 cache
built directly into processor chip, little memory space
L2 cache
larger capacity little slower
flash memory
nonvolatile memory that can be erased and rewritten
CMOS
complementary metal-oxide semiconductor high speeds little power needed
Access time
the amount of time it takes a processor to read data, instructions,and information
nanosecond
one billionth of a second
expansion slot
a socket on the motherboard that can hold an adapter card
adapter card
a circuit board that enhances functions of the system unit
flash memory
memory cards or USB flash drives
video card
converts computer outlet into video signal