Maintenance history and copyright notice

December 22, 1999: major revision of the site
March, 2010: extensive facelift, fixed-width pages.
August, 2010: server-side includes (php version).
August, 2011: clean-up; html5.
August 4, 2013: inventory list updated; 'recent acquisitions' page added; item descriptions added and corrected. GIF-animations and some movie formats don't work on the iPad: this problem is under investigation.
August 8, 2014: website moved to new server. Logo changed.
January 22, 2015: website search element temporarily removed.
October 17, 2015: website search element replaced.
November 22, 2015: videos in ogv format added for improved browser compatibility.
September, 2016: CSS3 modal window elements; inventory list split up.
January, 2017: interactive Algol mark sense card reintroduced.
April, 2017: spring cleaning; flexowriter and basicode materials added.

This website is being updated and extended continually. We strive for correctness of the written statements and the computer programs included with this website; however we cannot give any guarantee to this effect. Comments and suggestions for improvement are welcome.
Unless otherwise stated, the design, texts and pictures of this website are © University of Amsterdam (E.H. Dooijes) and may not be used without permission of the author. In some cases pictures from equipment manuals are included without explicit permission of the vendor or manufacturer (which often doesn't exist any more). Evidently, we don't possess the copyrights (if still existing at all) in such cases. Photos marked [EJ] are by Edward Jacobs.
The cartoon on this page was taken from 'Introduction to Data Communication', DEC 1968.