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Memory by Mind Map: Memory
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Memory size is measured

kilobytes (KB or K)

megabytes (MB)

gigabytes (GB)

terabytes (TB)

Volatile memory

Loses its contents when power is turned off

Example includes

RAM, Static RAM (SRAM), Magnetoresistive RAM (MRAM), Dynamic RAM (DRAM)

Nonvolatile memory

Does not lose contents when power is removed

Examples include

ROM, Read-only memory (ROM) refers to memory chips storing permanent data and instructions, A PROM (programmable read-only memory) chip is a blank ROM chip that can be written to permanently

flash memory, can be erased electronically and rewritten

CMOS, technology provides high speeds and consumes little power

Memory cache

speeds the processes of the computer because it stores frequently used instructions and data

Access time

the amount of time it takes the processor to read from memory