The intel 4004 was one of the first microprocessors ever produced, released in 1971. Directly compatible instructions with mc540 roms and. Microprocessors 6 microprocessor is a controlling unit of a microcomputer, fabricated on a small chip capable of performing alu arithmetic logical unit operations and communicating with the other devices connected to it. This paper aims to tell a more interesting and complex story by examining the historical context in which the 4004 was developed, both outside and inside intel. Instruction set includes rams conditional branching.
Microprocessor and interfacing notes pdf mpi pdf notes book starts with the topics vector interrupt table, timing diagram, interrupt structure of 8086. Microprocessor consists of an alu, register array, and a control unit. Microprocessor and interfacing pdf notes mpi notes pdf. The 4004 was designed by federico faggin, masatoshi shima and others. The chip design, implemented with the mos silicon gate technology, started in april 1970, and was created by federico faggin who led the project from beginning to completion in 1971. It could address directly 64 kb of memory, it had 176 instructions, a large number of registers, a built in option for refreshing the dynamic ram memory, singlesupply, greater speed of work etc. The mcs4 micro computer set has two types of instuction a 1 word instruction with an 8bit code and an execution time of 10.
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