[rswail]

Agreed, just saying that the PDPs were where a lot of the people developing micro computers cut their teeth eg CP/M looks a lot like RT-11.

Minicomputers like the PDP-11 begat microcomputers around 8080s, Z80s, 6509s, 6502s.

"Home" microcomputers started around 1977/78 with the Apple ][ and TRS-80 and PET.

[mrandish]

For sure, by volume the impact of the PDP-11 was almost entirely through micros and workstations because they were taking over so fast. Although, Unix and C did spread like wildfire from the PDP-11 to other minis. In fact, C was originally created for porting Unix.

In terms of timing, the PDP-11 shipped in early 1970 and was an immediate best-seller. Back then, students didn't get much hands-on computer time until their final two years so by the mid-70s its influence was already being felt. The 6809 was being designed in 1975 and the architecture was clearly inspired by the PDP-11's orthogonal ISA, interrupts stack handling, etc.