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The first chips that could be considered microprocessors were designed and manufactured in the late 1960s and early 1970s, including the MP944 used in the Grumman F-14 CADC. [1] Intel's 4004 of 1971 is widely regarded as the first commercial microprocessor. [2]
While there is disagreement over who invented the microprocessor, [2] [14] the first commercially available microprocessor was the Intel 4004, released as a single MOS LSI chip in 1971. [15] The single-chip microprocessor was made possible with the development of MOS silicon-gate technology (SGT). [ 16 ]
The Intel 4004 is a 4-bit central processing unit (CPU) released by Intel Corporation in 1971. Sold for US$60 (equivalent to $470 in 2024 [2]), it was the first commercially produced microprocessor, [3] and the first in a long line of Intel CPUs.
The earliest multi-chip microprocessors were the Four-Phase Systems AL1 in 1969 and Garrett AiResearch MP944 in 1970, each using several MOS LSI chips. [33] On November 15, 1971, Intel released the world's first single-chip microprocessor, the 4004, on a single MOS LSI chip.
Gary Arlen Kildall (/ ˈ k ɪ l d ˌ ɔː l /; May 19, 1942 – July 11, 1994) was an American computer scientist and microcomputer entrepreneur. During the 1970s, Kildall created the CP/M operating system among other operating systems and programming tools, [5] and subsequently founded Digital Research, Inc. to market and sell his software products.
As microprocessors were developed, companies often released simple development systems to bootstrap the use of the processor. These systems were often converted by hobbyists into complete computer systems. Intel's Intellec computers were a series of early microcomputers Intel produced starting in the 1970s as a development platform for their ...
The history of the personal computer as a mass-market consumer electronic device began with the microcomputer revolution of the 1970s. A personal computer is one intended for interactive individual use, as opposed to a mainframe computer where the end user's requests are filtered through operating staff, or a time-sharing system in which one large processor is shared by many individuals.
He was employed to implement the transistor-level logic of Intel's next microprocessor, which became the Intel 8080 (conception and architecture by Federico Faggin), released in 1974. [3] Shima then developed several Intel peripheral chips, some used in the IBM PC , such as the 8259 interrupt controller , 8255 parallel port chip, 8253 timer ...