10 Apr
2024
10 Apr
'24
5 p.m.
Mike,
Hi. My first "computer" was a PDP-8/I with 4k core, high speed reader/punch
and an ASR-33 TTY
that was in the early 1970's. I got it used from a lab that was closing for
$600.00 delivered.
Eventually expanded it to 12k core with 2 DEC tape drives. Loads of fun.
DECus came in handy.
Ken Martin
On Wed, Apr 10, 2024 at 5:40 PM Mike Katz via cctalk <cctalk(a)classiccmp.org>
wrote:
I want to thank you all for this IBM 360 conversation.
It makes me feel
young🙂. My first computer was a PDP-8/L with 4K of core memory and a
Teletype ASR-33. That was 1972 (I was 12).
On 4/10/2024 4:23 PM, Paul Koning via cctalk wrote:
of that era. The ones I remember from our 360/44 had capstans that turned
continuously, one to each side of the head. The tape was shoved against
the capstan to start tape motion, and against a rubber brake block to stop
it. That was wild enough, but the other crazy aspect is that the vacuum
columns were arranged so the oxide was facing outward, i.e., rubbing
against the side walls of the vacuum column.
--
End of line
JOB TERMINATED
> On Apr 10, 2024, at 5:01 PM, Van Snyder via cctalk <
cctalk(a)classiccmp.org> wrote:
...
I think the 360/67 replaced "Halt and Catch Fire" with "Rewind and
Break Tape."
I always wondered if that wasn't a standard property of IBM tape drives
I never did wear out a tape, but then again, I never used a tape more
than a half dozen times on that system.
paul