File:PDP-5 4k by 12 bit core.jpg
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Size of this preview: 799 × 599 pixels. Other resolutions: 320 × 240 pixels | 640 × 480 pixels | 1,024 × 768 pixels | 1,333 × 1,000 pixels.
Original file (1,333 × 1,000 pixels, file size: 190 KB, MIME type: image/jpeg)
Captions
Captions
A 4K by 12 bit core memory module from a DEC PDP-5 computer from 1964
Summary[edit]
| Description |
English: A magnetic-core memory module from a PDP-5 computer. The module is designed to plug into the backplane of the computer, held in place by two large T-handle jackscrews, each about 1 foot (30 cm) long. This particular module was made by Electronic Memories Inc. and accepted by Digital Equipment Corp. on 9/23/1964. The individual cores inside this memory are 0.05 inches (1.27 mm) in diameter, and the memory cycle time (read plus refresh) was 4 to 6 microseconds. |
| Date | |
| Source | Own work |
| Author | Douglas W. Jones |
Licensing[edit]
I, the copyright holder of this work, hereby publish it under the following license:
 
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:00, 28 June 2021 | | 1,333 × 1,000 (190 KB) | Douglas W. Jones (talk | contribs) | Uploaded own work with UploadWizard |
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