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18 Cards in this Set
- Front
- Back
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binary system
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number system for computers that has two unique digits: 0,1
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bit
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smallest unit of data a computer can process
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byte
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eight bits grouped together as a unit
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memory
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electronic components that store instructions waiting to be executed by the processor; data needed by those instructions
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volatile memory
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temporary memory that is lost when computer is powered down
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nonvolatile memory
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permanent memory that is kept even when the system loses power
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RAM memory
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random access memory, also called main memory, consists of memory chips that can be read from and written to by the processor and other devices
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ROM memory
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read-only memory that stores permanent data and instructions
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memory module
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small circuit board where RAM chips usually reside
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memory slot
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they hold memory modules
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cache
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helps processing times, but varys
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memory cache
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helps speed the processes of the computer because it stores frequently used instructions and data
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L1 Cache
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cache built directly in processor chip, with normally very small capacity
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L2 Cache
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slightly slower than L1 cache, but has much larger capacity from 64KB to 16MB
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flash memory
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type of nonvolatile memory that can be erased electronically and rewritten
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CMOS
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complementory metal-oxide semiconductor that provides high speeds and consumes little power
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Access Time
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amount of time it takes the processor to read data, instructions, and information from memory
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nanosecond
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one billionth of a second
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