The MCS-4 (Micro-Computer Set-4) or 4000 Series was a family of 4-bit microprocessor chipsets developed by Intel. The entire chipset was made of four individual chips, including the 4004 CPU which became the first commercial microprocessor. MCS-4 was completed by March 1971, entered production in June, and introduced into the market on November 15, 1971 so it is now nearly 52 years since the Microprocessor Revolution began.
This is a very rare NOS MCS4 Chipset in White Ceramic still in their original Chip holders and I seriously doubt that you would find another set in this condition for sale anywhere else in the world today. The Chips included in the Original Chipset were as follows: 4004 Central Processing Unit (CPU) 4001 Read Only Memory (ROM) 4002-1 Random Access Memory (RAM 4003 Shift Register
The MCS-4 can be minimally functioning with just the 4001 ROM and the 4004 CPU, however its designed to be fully functioning with RAM and shift register
This set also includes the C4002-2 RAM Chip which was not included in the original MCS4 Chipset.
