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18 Cards in this Set

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