Early 360 machines (Was: Front panel switches - what did they do?)
elson at pico-systems.com
Wed May 25 12:06:00 CDT 2016
On 05/25/2016 12:01 PM, Noel Chiappa wrote:
> > From: Jon Elson
> > the /20 was intended for very specific uses in 360 shops, and maybe as
> > an entry-level "foot in the door" to move totally tab card shops into
> > the 360 family. The only /20s I ever saw were used as offline spool
> > printers and card readers in large 360 shops.
> I interned at IBM Bermuda, and they had a 360/20 as their main service bureau
> machine; it had (IIRC) a card reader/punch, 4 tape drives, and a 4301
> printer. When I got there, they had just gotten in a System 3 (two
> single-platter hard drives, a 4301 printer, and I'm not sure what else) to
> replace it.
I'm guessing, maybe, that would be a 1403 printer? There
were 1403 and 1443 printers.
The only language supported on the 360/20 was RPG. For a
mostly tab card type of operation, you could actually do a
lot in RPG. Otherwise, you had to write in machine language
and get it assembled on another system.
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