computer memory: Quick Facts

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Oct. 30, 2026

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Figure 6: The increasing capacity of dynamic random-access memory (DRAM) chips.

Diagram showing the basic organization of a computer, with labeled blocks for memory, arithmetic-logic unit (ALU), input and output units, and control unit, connected by arrows indicating data transfer and control flow.

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Topics

main memory magnetic drum magnetic bubble memory virtual memory disk cache memory auxiliary storage nonvolatile memory mercury delay line flip-flop buffer motherboard graphics processing unit peripheral device software central processing unit sound card computer chip hardware computer circuitry coprocessor

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Jay Wright Forrester

American engineer

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Computers and Technology Quiz

Technician operates the system console on the new UNIVAC 1100/83 computer at the Fleet Analysis Center, Corona Annex, Naval Weapons Station, Seal Beach, CA. June 1, 1981. Univac magnetic tape drivers or readers in background. Universal Automatic Computer

Computers and Operating Systems