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                    PEGASUS

The Pegasus computer was manufactured by Ferranti Ltd from 1955
to about 1962. About 40 systems were sold. It was popular with
users because of its consistent and clean architecture.
The machine used plug-in package construction, main store was 
a 4096- or 8128-word drum, computing store about 50 words of
nickel acoustic delay lines, serial bit-rate 333 kc/S, 39-bit
words, paper tape in and out. 

See Resurrection issue 7 for an insight to some of the design
decisions; and the paper "The Design Philosophy of Pegasus, A
Quantity Production Computer" by W.S.Elliott et al in Proc.I.E.E
Vol 103, Part B, p188, published in 1956.


Simulators of Pegasus included here are:

pegem.zip    by Chris Burton (chris@envex.demon.co.uk) for MSDOS

CPB 9 December 1995

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Added PegEm2, which is pegem but with mouse control as well as
keyboard. There are little bugs when run under Windows 98 or XP, 
but it is usable when started in a MSDOS window in full-screen mode.

Download the file PegEm2.zip into a folder C:\Pegem, and unzip it 
there. Execute PegEm2.exe. See PegEm2-mouse.doc for supplementary 
information about controlling PegEm2. 

CPB 13 July 2009

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