Intel 4004

4-bit central processing unit p.u.t.o

Intel 4004 is the first Intel processor in 1971.[1]

Intel 4004
Intel C4004.jpg
White ceramic Intel C4004 microprocessor with grey traces
ProducedFrom late 1971 to 1981
Common manufacturer(s)
  • Intel
Max. CPU clock rate740 kHz
Min. feature size10 µm
Instruction set4-bit BCD oriented
ApplicationBusicom calculator, arithmetic manipulation
SuccessorIntel 4040


  1. "The Story of the Intel® 4004". Intel.