Typically the OS was not stored on punchcards.
b
On Sun, Mar 1, 2026 at 11:51 AM bluewater
Punchcards? You want punchcards? I got punchcards. Not exactly what I think you are
looking for but a large sample. Please check out
www.punchcardarchive.com
Check the Stats page for a quick summary. Beware the Album page. It takes a while to
load. After all, it has to display 25532 cards.
Not a full program but doing a search on CCROS in the Title field will show a few cards
that represent a few bits of a read only S/360 program.
Donald
-----Original Message-----
From: Steve Lewis via cctalk <cctalk(a)classiccmp.org>
Sent: Saturday, February 28, 2026 11:34 PM
To: General Discussion: On-Topic and Off-Topic Posts <cctalk(a)classiccmp.org>
Cc: Steve Lewis <lewissa78(a)gmail.com>
Subject: [cctalk] Operating system, on punch cards?
So studying about 1960s operating systems recently, it occurred to me that
the ASR-33 wasn't really "a thing" until the late 1960s. Yes, they
technically existed since 1963, but even going through 1960s Datamation issues - you
don't see a lot of ads or mention of ASR-33 until 1965.
The IBM 1050 maybe existed in 1961 for the IBM 709, but even so - general thought is that
CTSS (operating system) was largely initially developed using punch cards.
So - are there any archives or collections of these original punch cards?
Or are they essentially all gone/destroyed, since in general after some code was
"perfected" it was likely then archived to tape?
Anyway, apologies - it was just something that only recently occurred to me, that
basically all of the original operating systems originated on punch cards: CTSS,
Supervisor, AOSP, SCOPE, even MULTICs. So - do any of
those decks of cards still exist in archive? Would be neat to see a photo
of those - except it would be a shoebox of punch cards like any other, I suppose.
Or is this wrong, and the top tier teams making these OS's, probably had teletypes
and all the magnetic tape they wanted?
-Steve