File:DECSYSTEM-20 Introduction and Reference Card at Columbia University.jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file ‎(3,024 × 4,032 pixels, file size: 2.59 MB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary[edit]

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

Licensing[edit]

I, the copyright holder of this work, hereby publish it under the following license:
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current01:30, 7 November 2022Thumbnail for version as of 01:30, 7 November 20223,024 × 4,032 (2.59 MB)SteinsplitterBot (talk | contribs)Bot: Image rotated by 270° (EXIF-Orientation set from 3 to 1, rotated 90°)
00:29, 7 November 2022Thumbnail for version as of 00:29, 7 November 20224,032 × 3,024 (2.6 MB)Jonathan Schilling (talk | contribs)Uploaded own work with UploadWizard

You cannot overwrite this file.

There are no pages that use this file.

File usage on other wikis

The following other wikis use this file:

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:DECSYSTEM-20_Introduction_and_Reference_Card_at_Columbia_University.jpg&oldid=873050724"