The mini-computer D4a was a type of computer from the GDR.

It, like its predecessors D1, D2 and D3, to DO Dresden under the direction of Professor Dr. Lehmann developed and manufactured.

The D4 was based completely on transistors. It had approx. 200 pieces, with which it could implement 2000 operations/second. Its drum storage had 4096 memory cells with 33 bits each. As input devices the D4a ordered over integrated keyboard and punched-tape reader, to the expenditure served a Streifendrucker. In the execution of construction as D4a the computer of one was the first Auftischcomputer Europe.

Starting from 1966 about 3000 pieces of the D4/D4a by the VEB office machine works Zella Mehlis in series were manufactured.

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• Dedicated Micros D4A 4RSCD-300GB 4-way 300GB DVMR w/PPP, w ...
  Dedicated Micros D4A 4RSCD-300GB 4-way 300GB DVMR w/PPP, w/Networking, audio 60 PPS, CD, RS D4 is an easy to use high-performance 4-channel DVR. It has now.


• Dedicated Micros D4A 4RSCD-80GB 4-way 80GB DVMR w/PPP, w ...
  Dedicated Micros D4A 4RSCD-80GB 4-way 80GB DVMR w/PPP, w/Networking, audio 60 PPS, CD, RS D4 is an easy to use high-performance 4-channel DVR. It has now.


• GAMS: D4a
  D4a: Ordinary eigenvalue problems (Ax=λ x). D4a1:, Real symmetric, (6 routines). D4a2:, Real nonsymmetric, (3 routines) ...


• Index of /
  Index of /. Icon Name Last modified Size Description. [TXT] index.htm 28-Apr-2006 07:18 8. Apache/2.0.52 (CentOS) Server at d4a.net Port 80.


• Url Redirection
  The d4a Url Redirection gives you the option to cloak (hide the original url) ... The d4a Url Redirection service lets you provide your own meta tag and ...