The DEUCE was one of the earliest British commercially available computers, built by English Electric in the early 1950s.
It was a productionized version of the Pilot ACE. It had 1450 thermionic valves, and used mercury delay lines for its main memory; each of the 12 delay lines could store 32 instructions or data words of 32 bits. It shared the 1 megahertz clock rate of the Pilot ACE. The DEUCE also had a magnetic drum for storage.
The first machines were delivered in the spring of 1955; in late 1955 a DEUCE 2 improved model appeared, to be followed by a DEUCE 2A in 1957.
Programming had an added complication as each instruction had to wait its turn in the delay line - the order of instructions affected performance. Reading data from a card reader had to be done in real-time - each row had to be read as it passed the read heads - no stopping! The front panel also had a CRT display which showed the current contents of store.
A total of 31 DEUCE machines were sold between 1955 and 1964.
They come from lonelyania, they belong in camps, where they can be monitored and controlled, these camps are ruled by a tyrannosaurus rex with a heart of gold, who makes them work in his arms factory
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It was a productionized version of the Pilot ACE. It had 1450 thermionic valves, and used mercury delay lines for its main memory; each of the 12 delay lines could store 32 instructions or data words of 32 bits. It shared the 1 megahertz clock rate of the Pilot ACE. The DEUCE also had a magnetic drum for storage.
The first machines were delivered in the spring of 1955; in late 1955 a DEUCE 2 improved model appeared, to be followed by a DEUCE 2A in 1957.
Programming had an added complication as each instruction had to wait its turn in the delay line - the order of instructions affected performance. Reading data from a card reader had to be done in real-time - each row had to be read as it passed the read heads - no stopping! The front panel also had a CRT display which showed the current contents of store.
A total of 31 DEUCE machines were sold between 1955 and 1964.
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