ACM's precis of who what when : https://amturing.acm.org/info/wilkes_1001395.cfm
To paraphrase: - 1951 concept - 1958 reduced to practice in ESDAC2 in the chilly fens; Cambridge UK - 1964 IBM 360 Model $ Martin -----Original Message----- From: Chuck Guzis via cctalk [mailto:[email protected]] Sent: 04 May 2025 23:27 To: Paul Koning via cctalk <[email protected]> Cc: Chuck Guzis <[email protected]> Subject: [cctalk] Re: Wang TTL BASIC The Packard-Bell PB440 (1963) was microprogrammable: https://bitsavers.org/pdf/packardBell/PB-440/SP-149A_PB-440_microprogramming_May63.pdf Various earlier systems used microprogram-like techniques, but I don't know how many were earlier than PB in their use of the word. Was the PB-250's floating point microprogrammed? --Chuck
