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Definitions and Meanings

System Architecture and Memory

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Central processing unit - the brain of the computer that processes program instructions. Also called a microprocessor.
A form of memory in a computer that uses electronic transistors to store data.
Random Access Memory (RAM): Memory that is constantly being written to and read from. It does not retain its contents without a constant supply of power, eg when a computer is turned off, everything stored in its RAM is lost.
A section of a computer storage drive which is temporarily used as RAM.
A piece of temporary memory. It can refer to a part of the RAM, storage disk, CPU, or an area for storing web pages.
A processing unit within a CPU. CPUs can have multiple cores.
Central Processing Unit (CPU)
Flash Memory
RAM
Virtual Memory
Cache
Core

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