No. It's often believed that the 8008 came from the 4004, but they have completely different architectures. They are essentially unrelated except many of the sa

No. It's often believed that the 8008 came from the 4004, but they have completely different architectures. They are essentially unrelated except many of the same people worked on both. The 8008 came from the Datapoint 2200, a desktop computer built from a board of TTL chips. Datapoint asked Intel and Texas Instruments if they could replace this TTL processor with a single chip. Texas Instruments created the TMX 1795, the first 8-bit microprocessor. Intel created the 8008 shortly after. Both chips copied the instruction set and architecture of the 2200. Datapoint didn't like either chip and stuck with TTL. Texas Instruments couldn't find a customer for the TMX 1795 and abandoned it. Intel, on the other hand, marketed the 8008 as a general-purpose microprocessor, essentially creating the microprocessor industry. The 8008 was cleaned up to create the popular 8080. Intel started the iAPX 432 as their flagship "micromainframe" processor, but it was extremely ambitious and fell behind the schedule. Intel created a stopgap 16-bit processor so they'd have something to sell until the iAPX 432 was ready: this was the 8086. They designed the 8086 to be able to run 8080 assembly after translation, so it inherited a lot from the 8080. As for the iAPX 432, it was late, a failure, and is mostly forgotten. The point of this is that the x86 is descended from the Datapoint 2200 and has no connection to the Intel 4004.