12 Sep
2007
12 Sep
'07
11:10 p.m.
On 12/09/2007 20:03, Roy J. Tellason wrote:
On Wednesday 12 September 2007 14:31, Ethan Dicks
wrote:
> On 9/12/07, M H Stein <dm561 at torfree.net> wrote:
>> You mean you didn't just make a simple
cassette "null modem" cable?
> Until you mentioned it now, I never would have
thought of it.
I never heard of that either, until I read it in that
post...
ISTR there was some Commodore diagnostic software that you could
transfer that way, and we certainly used the same technique to transfer
diagnostics from a BBC Micro with a disk drive to cassette-based
machines we were testing or repairing. That would be around 1982-85.
We put resistors in the cables to get the levels right.
--
Pete Peter Turnbull
Network Manager
University of York