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18 Cards in this Set
- Front
- Back
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number system that has just two unique digits, 0 and 1 called bits
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binary system
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smallest unit of data that a computer can process
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bit, binary digit
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8 bits grouped together as a unit
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byte
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consists of electronic components that store instructions waiting to be executed by the processor, data needed by those instructions, and the results of processing the data
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memory
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type of memory, when the computer's power is turned off, it loses its contents
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volatile memory
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does not lose its contents when the power is turned off
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nonvolatile memory
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main memory, consists of memory chips that can be read from and written to by the processor and other devices
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RAM, random access memory
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refers to memory chips storing permanent data and instructions
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ROM, read-only memory
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small circuit board
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memory module
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hold memory modules
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memory slot
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helps speed the processes of the computer because it stores frequently used instructions
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cache
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built directly in the processor chip, has a small capacity
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L1 cache
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built directly in the processor chip, has a large capacity
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L2 cache
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memory chips storing permanent data and instructions
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ROM
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type of nonvolatile memory that can be erased electronically and rewritten
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Flash memory
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technology that provides high speeds and consumes little power
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CMOS complementary metal-oxide semiconductor
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amount of time it takes the processor to read data, instructions and info from memory
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Access time
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one-billionth of a second
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nanosecond
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