TR4
TR-4 CPU Rack with Teletype [1] TR-4 (TR4, Telefunken-Rechner 4),
was a West-German digital general purpose mainframe computer developed since 1956 and manufactured and shipped since 1962 by Telefunken in Backnang and later in Konstanz. Developers include Gudrun Beyer, Wolfgang Händler [2], Hans-Otto Leilich, Kuno Radius, Egbert Ulbrich, Eike Jessen and Heinz Voigt [3]. 36 TR-4 computers were manufactured and delivered mostly to West-German universities and public authorities and their associated data centers.
Successor
In 1968, the TR4 was superseded by the ten times faster TR 440, which already had the first ball-based mouse named Rollkugel [5].
Chess Programs
External Links
- TELEFUNKEN TR4 am Leibniz-Rechenzentrum 1965 by Gerd Sapper (German, English)
- TELEFUNKEN TR-4
- TR 440 from Wikipedia.de (German)
- Digitalrechner-Geschichte: TR4 auf www.dj1xk.de (German)
- Historie der Digitalrechner in Deutschland TR-4
- Index of /pdf/aeg-telefunken/tr4 from bitsavers.org
References
- ↑ TELEFUNKEN TR4 am Leibniz-Rechenzentrum 1965 by Gerd Sapper (German, English)
- ↑ Erlangen Classification System - Wikipedia.de (German)
- ↑ Eike Jessen, Dieter Michel, Hans-Jürgen Siegert, Heinz Voigt (2008). AEG-Telefunken TR 440: Unternehmensstrategie, Markterfolg und Nachfolger. Informatik - Forschung und Entwicklung, Vol. 22, No. 4
- ↑ TR-4_Brochure_Apr60.pdf, pp. 2
- ↑ Telefunken Rollkugel ~ oldmouse.com