essor are – Educational field, Medical field, scientific labs, Banking sector etc. Introduction to Microprocessors • Intel introduced it’s 4 bit microprocessor 4004 in 1971 and it’s 8 bit microprocessor 8008 in 1972 • These microprocessors could not survive as general purpose microprocessors because of their design and performance limitations. • Then the launch of a first general purpose 8 bit microprocessor 8080 in 1974 by Intel is considered to be the first major stepping stone towards the development of advanced microprocessors.