The number of pins of this microprocessor is 40 The number of transistors used is 29000 and instruction per second is 2.5 Million.

The 8086 microprocessor was invented in the year 1978.

The number of transistors used is 6,500 and instruction per second is 769230.

The 8085 microprocessor was invented in the year 1976.

The number of transistors used is 60k and instruction per second is 10 times quicker as compared with 8008 processor.

The 8080 microprocessor was invented in the year 1974.

The clock speed of this microprocessor is 500 KHz and instruction per second is 50K

The 8008 processor was invented in the year 1972.

The number of pins of this microprocessor is 16.

The number of transistors used in this microprocessor is 2,300 and instruction per second is 60K. The clock speed of this microprocessor is 740 KHz. The INTEL 4004/4040 was invented in the year 1971 by Stanley Mazor & Ted Hoff. These types of microprocessors were different from the previous generations of microprocessors in that all main workstation industrialists began evolving their own ISC based microprocessor architectures.Įvolution of Microprocessor 4-bit Microprocessor These were 16-bit processors with a performance like mini computers. The third generation microprocessors were introduced in the year 1978, as denoted by Intel’s 8086 and the Zilog Z8000. The result of this technology resulted in a fivefold increase in instruction, speed, execution, and higher chip densities.

The difference between the first generation microprocessor and second-generation microprocessors was mainly the use of new semiconductor technologies to manufacture the chips. When the first generation is processed in the execution unit, then the second instruction is decoded and the third instruction is fetched. The second generation of the microprocessor is defined by overlapped fetch, decode, and execute the steps. These processors are introduced in the year 1979, and Intel 8080 processor is another example of the microprocessor. Examples of the second-generation microprocessors are 16-bit arithmetic 7 pipelined instruction processing, MC68000 Motorola microprocessor. In the year 1970, a small number of transistors were available on the integrated circuit in the second-generation microprocessors.

Evolution of intel processor pdf