the intel 4004 is the first microchip in the long line of intel microchips, and was the first microprocessor being the key to computer mastery, it is basically a tiny cpu, and looks almost identical to the normal microchip of today, the only difference being a tiny plate on the microchip reading c4004 and a random 4 number code started by a random letter. it was made in 1971, but was started on 1970.