Company Pedigree
Ascendant Companies |
Descendent Companies |
Company |
Comments |
Company |
Comments |
Hitachi |
Founded in 1910 as an electronics repair shop by Namihei Odaira. |
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Company Overview
Founded in 1910 as an electronics repair shop by Namihei Odaira. Hitachi’s product line expanded to electric transformers, motors and generators through the 1930’s. In the 1940’s and 50’s, Hitachi’s product diversified even further to electric locomotives to transistor based computers. In the sixties, Hitachi’s diversification continued. Hitachi began to build its semiconductors producing LSI chips in the late sixties. In 1974, Hitachi entered the large-scale mainframe market and in 1978 produced a computer that was the fastest in the world. The seventies also saw many memory and microprocessor products from its semiconductor division. The eighties brought the Japanese domination of the world’s memory markets, of which Hitachi was a major player. Hitachi further enhanced its computer product line with the introduce of series of supercomputers.
Today Hitachi continues as a manufacturer of chemicals, electronics, computers, supercomputers, communications equipments, electric trains, nuclear reactors and electronic devices.
Chip Identification
Chips
Microprocessors |
CPU’s |
HMCS42/3/4/5/6/7 (4-bit), HD44790 (4-bit), |
MCU’s |
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Bit-Slice |
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Coprocessors |
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Memory Devices |
RAM |
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ROM |
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PROM |
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EPROM |
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EEPROM |
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CCD Memory |
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Bubble Memory |
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General Use Support Chips |
Shift Registers |
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Interfaces |
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Communications |
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Second Sourced Chips
Microprocessors |
CPU’s |
Motorola 6800 (HD46800), Motorola 68000 (HD68000) |
MCU’s |
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Bit-Slice |
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Memory Devices |
RAM |
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ROM |
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PROM |
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EPROM |
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EEPROM |
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CCD Memory |
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Bubble Memory |
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General Use Support Chips |
Shift Registers |
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Interfaces |
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Communications |
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