What Makes a PDP-11/35 or 40 Tick?

Jon Elson elson at pico-systems.com
Tue Jun 11 11:24:47 CDT 2019


On 06/11/2019 06:33 AM, Paul Birkel via cctalk wrote:
> I wonder what the unlisted 20 ICs are for, and what they are?
I think the 23Bxxxx are microcode ROMS, and the 441 seems to 
be clerical error.

Jon


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