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23 Cards in this Set
- Front
- Back
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digital
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recognize only 2 concrete states, on and off
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binary system
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a number system that has just two unique digits, o and 1, called a bit
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bit
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the smallest unit of data that a computer can process
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byte
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8 bits
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memory
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consists of electronic components that store instructions waiting to be executed by the processor
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kilobyte
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1024 bytes
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megabyte
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1 million bytes
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gigabyte
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1 billion bytes
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terabyte
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1 trillion bytes
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volatile memory
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loses its content
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Nonvolatile memory
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does not lose its content when power is removed from the computer
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RAM
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consists of memory chips that can be read from and written to by the processor and other devices
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memory module
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small circuit board
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memory slots
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hold memory modules on the mother board
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cache
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helps improve processing times
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memory cache
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helps speed the processes of the computer it stores frequently used instructions and data
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L1 cache
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built directly in the processor chip
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L2 cache
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slightly slows then L1 cache but has a much larger capacity
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ROM
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memory chips storing permanent data
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firmware
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contains permanently written data, instructions, or information
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Flash Memory
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a type of nonvolatile memory that can be erased electronically and written
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access time
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the 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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