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primary storage

The primary memory is the main memory of a computer. The programs and data that the central processing unit processes and needs to access directly are stored in the primary memory.

Primary memories are extremely fast volatile memories, random access memories( RAM), or flash memories with the shortest access times. The storage capacity of primary memories is relatively small compared to secondary memory and tertiary memory, but the cost per memory unit is higher than for other memories. Primary memories include registers, caches and main memory.

Memory hierarchy

Memory hierarchy

Primary storage offloads its unneeded or computed data to secondary storage. This includes the hard disk, floppy disks and the optical storage mediacompact disc and DVD.

Englisch: primary storage
Updated at: 25.04.2017
#Words: 114
Links: memory, main memory, computer, data, central processing unit (CPU)
Translations: DE

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