|Computer||English Electric System 4|
|Manufactured by||English Electric Leo Marconi Computers
English Electric Computers
for English Electric Ltd in Stafford I was sent on courses for the
System 4 as this was going to be the computer that was to replace the
KDF9 on the Stafford site. However I had just been trained and we (a
team led by Brian Garbett) were planning the System 4 installation when
in September 1968, EE was taken over by GEC (aka Arnold Weinstock) and
all plans were put
on hold. Some months later I was informed that if I wished to apply for
other jobs I
could take the time off ! (this being the before any redundancy schemes
came into force - and I had only been with EE just over a year). Thus
See 370/165 for further developments at Stafford.
|Programming|| System 4 was a
re-badged RCA Spectra which in turn was one of the first IBM
'Clones' in this case a copy of the IBM 360 range.
The aim was to produce a range of British built computers 4/10, 4/30,
4/50, 4/70 etc. The 4/75 was built for Edinburgh University. My
360 experience had been the reason for my recruitment by EE in the
first place. The assembler code was almost identical to the IBM.
|Hardware||I think the early
machines were re-badged Spectras but the 4/70 was a long time coming.
system was very similar to DOS/360 but incorporated things to make it
easier to move from other RCA machines. I didn't stay long enough to
find out any more. The home grown operating system (System J) was late
|Links||Digplanet/Wiki Specs etc |
Staffordshire University Computing Futures Museum - includes KDF9 & Leo III
Picture - a bit sad Another(Same) Picture