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Memory

DEC PDP-8 standard core memory

The fitted word-addressed core memory in DEC's standard PDP-8, with 4096 words of storage.

Manufacturer
Digital Equipment Corporation
Architecture
Coincident-current ferrite core
Introduced
1965
Word width
12 bit
Type
Random-access ferrite-core memory
Record status
approved

Figures

DEC PDP-8 standard core memory: recorded figures
Metric Value Evidence Basis Method Source
Memory capacity (words) memory 4096 words Confirmed Vendor-rated Design capacity Stated by the vendorStandard fitted core with its native word width. This is a word count for the fitted core, with 12 bit per word, not a byte-addressed capacity. Optional memory extension is excluded.

Fitted to

Editorial notes

The basic core is the sole fitted program memory in this configuration. Optional memory extension is excluded.

Sources

  • PDP-8: A High Speed Digital Computer Digital Equipment Corporation · tier A · Features and data break: printed/PDF p. 4; standard components: p. 6; core, cycle, and console: p. 7; Teletype: p. 8; instruction timing: p. 10; programming: pp. 14-15; optional equipment: p. 16; electrical specifications: p. 18