And it was an "IBM 1602" although pretty obviously based very closely on the actual 1620.
The real world 1620 was a 50s era RTL scientific computer (IBM used to separate math processors from business processors, until the famous "360" that did everything pretty well). This used the SMS style hardware cards that everything IBM made used until the 360-era SLT cards. Each SMS card holds enough circuits to be roughly one 7400 series TTL chip.
Comments
Found it: "Down on the farm"
https://www.tor.com/2008/07/20/down-on-the-farm/
And it was an "IBM 1602" although pretty obviously based very closely on the actual 1620.
The real world 1620 was a 50s era RTL scientific computer (IBM used to separate math processors from business processors, until the famous "360" that did everything pretty well). This used the SMS style hardware cards that everything IBM made used until the 360-era SLT cards. Each SMS card holds enough circuits to be roughly one 7400 series TTL chip.