The IBM 602 Calculating Punch, introduced in 1946, was an electromechanical calculator capable of addition, subtraction, multiplication, and division...
3 KB (235 words) - 09:32, 9 June 2022
different jobs, and by the late 1940s, unit record equipment such as the IBM 602 and IBM 604, were programmed by control panels in a similar way, as were the...
31 KB (3,419 words) - 04:00, 29 August 2024
scientific calculations. IBM 602 IBM 603 IBM 604 The IBM 601 Multiplying Punch, Frank da Cruz, Columbia University Computing History 1931, IBM Archives, ...New...
2 KB (197 words) - 20:12, 25 August 2024
IBM 7340: IBM 7070/IBM 7074 hypertape (7074 only) IBM 7400: IBM 7070/IBM 7074 Printer IBM 7500: IBM 7070/IBM 7074 Card Reader IBM 7501: IBM 7070/IBM 7074...
186 KB (19,362 words) - 20:19, 25 August 2024
The first bipolar semiconductor memory IC chip was the SP95 introduced by IBM in 1965. While semiconductor memory offered improved performance over magnetic-core...
29 KB (3,274 words) - 23:13, 26 August 2024
(The earlier IBM 601 and released in the same year IBM 602 used relay logic.) The IBM 603 was adapted as the arithmetic unit in the IBM Selective Sequence...
5 KB (385 words) - 20:12, 25 August 2024
conductor's arm, the reaction time to lights on a drag strip, etc.) 2×102: IBM 602 electromechanical calculator (then called computer), 1946[citation needed]...
17 KB (1,660 words) - 15:47, 1 March 2024
Unit record equipment (category IBM unit record equipment)
could divide, the IBM 602, was introduced. Unreliable, it "was upgraded to the 602-A (a '602 that worked') [...] by 1948". The IBM 603 Electronic Multiplier...
59 KB (6,047 words) - 20:27, 25 August 2024
Plugboard (category IBM unit record equipment)
was obtained by...". The control panels of calculators, such as the IBM 602 and IBM 604, that specified a sequence of operations, were described as being...
19 KB (2,672 words) - 20:22, 25 August 2024
