> On Jul 2, 2025, at 7:28 AM, Antonio Carlini via cctalk
> <[email protected]> wrote:
>
> I have the VAX 8600 Training Print Set and I sent it to someone (sorry,
> forgot who) years ago.
>
> There's at least one online version here:
> https://www.vaxhaven.com/images/0/04/EY-4818E-PP-0001.pdf
>
> I don't know what, if anything, would be the difference between this and the
> normal MPxxxx drawings.
>
> Antonio
That looks a bit like a block diagram, sort of a conceptual level schematic as
opposed to a detailed gate by gate schematic.
It reminds me a bit of the "block diagram" manuals for the CDC 6600
supercomputer, which shows most of the logic modules and the buses
interconnecting them, along with the relevant clock pulses (more or less
accurately). But there are also the wiring diagrams, which are the actual
fully completed schematics. If you want to understand the machine, the block
diagrams are excellent; if you want to replicate it, they are not sufficient
and the wiring diagrams are actually what you need.
paul
