English: Lightpen from the TX2 computer. This figure from Ivan Sutherland's famous Sketchpad dissertation was scanned, with permission from Sutherland, using an original paper copy of the dissertation. It has been previously published online in an electronic edition prepared by Alan Blackwell and Kerry Rodden, and freely available at http://www.cl.cam.ac.uk/techreports/UCAM-CL-TR-574.html The original high resolution scans used to create the electronic edition are now being placed on Wikimedia commons in accordance with Sutherland's wishes to make this work freely available. His original research was carried out under a U.S. National Science Foundation Fellowship.
Date
Source
Electronic edition of Sutherland's Sketchpad dissertation, edited by Blackwell & Rodden
Author
Scanned by Kerry Rodden from original photograph by Ivan Sutherland
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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.
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.
{{Information |Description={{en|1=Lightpen from the TX2 computer. This figure from Ivan Sutherland's famous Sketchpad dissertation was scanned, with permission from Sutherland, using an original paper copy of the dissertation. It has been previously publi