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Bendix G-15 computer, 2015 A read amplifier module from a G-15. The Bendix G-15 is a computer introduced in 1956 [1] [2] [3] by the Bendix Corporation, Computer Division, Los Angeles, California. It is about 5 ft × 3 ft × 3 ft (1.52 m × 0.91 m × 0.91 m) and weighs about 966 lb (438 kg).
Computer vacuum tubes (3 P) I. IBM vacuum tube computers (17 P) Pages in category "Vacuum tube computers" The following 69 pages are in this category, out of 69 total.
A vacuum-tube computer, now termed a first-generation computer, is a computer that uses vacuum tubes for logic circuitry. While the history of mechanical aids to computation goes back centuries, if not millennia, the history of vacuum tube computers is confined to the middle of the 20th century. Lee De Forest invented the triode in 1906.
7AK7 vacuum tubes in a 1956 UNIVAC I computer. UNIVAC I used 6,103 vacuum tubes, [24] [25] weighed 16,686 pounds (8.3 short tons; 7.6 t), consumed 125 kW, [26] and could perform about 1,905 operations per second running on a 2.25 MHz clock. The Central Complex alone (i.e. the processor and memory unit) was 4.3 m by 2.4 m by 2.6 m high.
The UNIVAC 1105 was a follow-on computer to the UNIVAC 1103A introduced by Sperry Rand in September 1958. [1] The UNIVAC 1105 used 21 types of vacuum tubes, 11 types of diodes, 10 types of transistors, and three core types. The UNIVAC 1105 had either 8,192 or 12,288 words of 36-bit magnetic core memory, in two or three banks of 4,096 words each ...
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