Development, round II

From: Hans B Pufal <>
Date: Sat Jan 31 01:10:20 1998

Peter Prymmer wrote:

> According to Goldstine in "The Computer: from Pascal to von Neumann" the
> first working modern stored program was a sorting routine that John von Neumann
> wrote in roughly 1943 - and had working on the ENIAC/EDVAC by 1946/47, but
> it was in machine code (binary).

Hmmm, the ENIAC had no program store (at that time) and EDVAC was not
built till much later, 1952 according to my CCC.
> An Assembler was available on the Princeton U/Institute for Advanced Study
> EDSAC by the Fall of 1949. Herman Goldstine and John von Neumann wrote > programming manual for it by 1951.

EDSAC was built in Cambridge (England) and was operational in May 1949.
The IAS machine built in Princeton became operational in early 1952.

The EDSAC team developed a coding practice that strongly resembled
assembler code with relocation and linking. The "assembler" was built
into the machine as a kind of ROM, it was less than 100 instructions
Just to keep the record straight.

 Hans B. Pufal : <>
 Comprehensive Computer Catalogue : <>
Received on Sat Jan 31 1998 - 01:10:20 GMT

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