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