File:DECSYSTEM-20 Introduction and Reference Card at Columbia University.jpg
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Summary
| Description |
English: From the Columbia University Center for Computing Activities, two documents used in 1980 that were related to using their main computing system at the time, the DECSYSTEM-20 and its TOPS-20 operating system. One is a 12-page Introduction, printed 2-up and dated May 1980, and the other is a front-and-back Reference Card, dated July 1979. |
| Date | |
| Source | Own work |
| Author | Jonathan Schilling |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 01:30, 7 November 2022 | | 3,024 × 4,032 (2.59 MB) | SteinsplitterBot | Bot: Image rotated by 270° (EXIF-Orientation set from 3 to 1, rotated 90°) |
| 00:29, 7 November 2022 |  | 4,032 × 3,024 (2.6 MB) | Jonathan Schilling | Uploaded own work with UploadWizard |
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