Hardly, Martin. The first "PC" (micro computer) was the 4004, a 4 bit Intel processor ( about 1972), followed by the far more useful 8008 (1974?) , then the 8080 (1975-6?). The 8086 (1982?) was a 16 bit, with the 8088 as the 8 bit version ( same machine code), but when IBM decided to use the 8088 in their machine, IBM defined it as a 16 bit machine...

Chips earlier than the 8086 were the 65xx and 68xx motorola families, and the above intell machines. Even the Z-80 was before the 8086.

( There were computrs before these chips- but the entire CPU was not on a single chip substrate)

Some of us remember 512 byte memory chips.....