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the Intel 4004 CPU. A fully expanded system could support 16 Intel 4001s for a total of 4 kB of ROM, 16 Intel 4002s for a total of 1,280 nibbles (640 bytes) of RAM, and an unlimited number of 4003s. The 4003s were connected to programmable input and output pins on the 4001 and to output pins on the 4002, not directly to the CPU. [8]
The 4-bit Intel 4004 was soon followed by the 8-bit Intel 8008 in 1972. The MP944 chipset used in the F-14 Central Air Data Computer in 1970 has also been cited as an early microprocessor, but was not known to the public until declassified in 1998.
The first commercial microprocessor was the binary-coded decimal (BCD-based) Intel 4004, [2] [3] developed for calculator applications in 1971; it had a 4-bit word length, but had 8-bit instructions and 12-bit addresses. It was succeeded by the Intel 4040, which added interrupt support and a variety of other new features.
As the first microprocessors were intended to run embedded systems such as in calculators, cash registers, scientific instrumentation, computer terminals, printers, plotters, industrial robots, synthesizers, game consoles, and so on, the Intellec was used for programming programmable memory chips used by embedded systems, e.g. the 2048-bit (256 ...
The term computer system may refer to a ... it is largely undisputed that the first single-chip microprocessor was the Intel 4004, ... Diagram showing how a ...
Intel: 6 MHz 16 - 55,000 1982 80188: Intel: 8 MHz 8/16 - 55,000 1982 80286: Intel: 6 MHz 16 1.5 μm 134,000 1983 RISC-II: UC Berkeley: 3 MHz - 3 μm 40,760 1983 MIPS [48] Stanford University: 2 MHz 32 3 μm 25,000 1983 65816: Western Design Center - 16 - - 1984 68020: Motorola: 16 MHz 32 2 μm 190,000 1984 NS32032: National Semiconductor - 32 ...
Comstar Star System 4 Intel 4004: 1972 PCB and several chips/cards; optionally expandable Intended for embedded/industrial applications which did not merit a minicomputer. A complete basic system included one PROM board and chip, one RAM board and chip, a CPU module, digital I/O board, power supply, and mounting rack, altogether for $995.
Intel introduced its first PMOS static random-access memory with a capacity of 256 bit, the Intel 1101, in 1969. [11]: 1303 The 1024-bit dynamic random-access memory Intel 1103 followed in 1970. [12] The 1103 was a commercial success and quickly began replacing magnetic core memory in computers. [12]