Today, computers are a part of our lifestyle, but the first computer that was used was developed at the University of Pennsylvania in the year 1946! It had an ENIAC (Electronic Numerical Integrator And Computer) processor. The reprogramming feature that is so extensively used today, was introduced by Alan Turing and John von Neumann with their teams. The von Neumann architecture is the basis of modern computers.
From the development of the first microprocessor - Intel's 4004 to the latest ones - the microprocessors have come a long way. Here, we look into the story so far.
Chips Till Date
1971 - Intel 4004
» It was designed by Federico Faggin and Ted Hoff of Intel and Masatoshi Shima of Busicom, and it was launched on November 15,1971.
» It consisted of 2300 transistors with pMOS technology.
» The total number of instructions were 46. The designed clock speed was 1 MHz while only 740 kHz was achieved.
It was the first microprocessor and it was used in the Busicom 141-PF calculator.
1972 - Intel 8008
» Also known as MCS-8, it was launched in April 1972.
» It was developed by Victor Poor and Harry Pyle of CTC, and Ted Hoff, Faggin, Stanley Mazor and Hal Feeney from Intel.
» It was made up of 3500 transistors. However, it was slower than its predecessor 4004.
» The clock speed was 0.5 MHz with the total number of instructions being 48.
For the first time it was used in personal computers, Micral and SCELBI.
1974 - Intel 8080
» Launched in April 1974, it was developed by Faggin, Mazor and Masatoshi Shima.
» The clock speed increased to 2 MHz, it was built on nMOS technology and used 6000 transistors.
» The major development was the separation of address (16-bit) and data (8-bit) bus. It also supported 256 I/Os.
It was used in the computers MITS Altair 8800 and IMSAI 8080. Space Invaders (arcade video game) also used 8080 as the main processor.
1974 -