IEEE-488 on the PDP-11

Ethan Dicks ethan.dicks at
Thu Nov 18 21:52:56 CST 2021

On Thu, Nov 18, 2021 at 3:15 AM Christian Corti via cctalk
<cctalk at> wrote:
> On Wed, 17 Nov 2021, Ethan Dicks wrote:
> > ... The IBV11 can certainly keep up with the
> > 6502 in the drive that's banging out the IEEE-488 protocol.
> Our Tektronix 4051 can talk to and use Commodore IEEE floppy drives for
> mass storage. It has a custom ROM extension for it.

That's really cool.  There are a few non-Commodore systems that were
able to talk to Commodore floppy drives.  I didn't know the Tektronix
4051 was one of them.

Do you know if it works at the flie level or the block level?


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