Questions tagged [ibm]
For questions regarding the products of IBM, International Business Machines.
131
questions
6
votes
1
answer
204
views
Repairing an Old CRT Monitor (IBM 5153)
I acquired a used IBM 5153 monitor. The model number is 5153002. It was manufactured in Taiwan and supports AC100-250V.
When I first powered it on, the monitor turned on, but nothing appeared on the ...
- 509
8
votes
1
answer
388
views
Was the single-level store (SLS) really a breakthrough?
I am reading Pugh's book on IBM, specifically the section on Future Systems (FS).
There were two key concepts in FS: high-level language support (HLS), and a single-level store (SLS). Both were ...
- 20.5k
11
votes
1
answer
382
views
What's the earliest source for the legend of Gary Kildall's airplane snub?
A commonly repeated (and commonly debunked) legend describes how Gary Kildall blew his chance at writing the operating system for the IBM PC. Examples include the following:
…legend has it that ...
- 7,681
2
votes
2
answers
224
views
What is the full name of IBM CP-67/CMS' DUMPD command?
I am reading the User Guide of CP-67. Under the command DUMPD (page 373), it describes its Purpose as:
The DUMPD command prints the contents of one direct-access record,
specified by a CCHHRR address,...
- 21
4
votes
1
answer
210
views
Coronet and Coronet II benchmarks?
I'm reading about the IBM ASC project, and I see repeated references to a benchmark known as Coronet and/or Coronet II.
Does anyone know what this did?
- 20.5k
7
votes
1
answer
471
views
How to treat an old PC
I have an old IBM PS/2 30/286, now sitting for a while on one of my desks.
I'm a bit afraid that it will stop working sooner or later, so what's the best way to keep it 'alive' ?
I fire it up every ...
- 850
17
votes
2
answers
4k
views
Was bootloading from punch cards possible on System/370 machines?
I have been idly looking into how System 370 works, though mostly at software and VM/370 OS. As a part of the system generation process, one needs to use DMKDDR utility and others. So I was curious ...
- 173
6
votes
1
answer
526
views
PC DOS E Editor (3.13v): "Not enough memory" error with a file of 1.65 MB and 40 320 lines, even with the /S switch
Using the E editor included with IBM PC DOS 7, I can't open a particular plain text file without encountering a "Not enough memory" error. The editor was invoked with the /S switch to make ...
- 61
8
votes
1
answer
525
views
What did a "blue-and-gray sheet of IBM printout paper" actually look like, circa 1994?
Scientific American's December 1, 2023 The Most Shocking Discovery in Astrophysics Is 25 Years Old outlines the "origin story" for the concept of dark energy, a term used to refer to an ...
- 2,358
5
votes
0
answers
138
views
System/3: Accessing compilers from tape [closed]
I started getting into playing with the IBM System/3 emulator from simh, and found this tape - looking at the listing it looks like there's a COBOL and RPG II compiler on that tape. What would be the ...
- 67
4
votes
0
answers
126
views
IBM RS/6000 Token Ring ISA card not operational
After solving a configuration challenge, the ISA Token Ring adapter in my RS/6000 is still not connected to the ring.
Extract from errpt -a:
LABEL: NONE
IDENTIFIER: 0118D2D0
Date/Time: ...
- 129
6
votes
2
answers
162
views
IBM RS/6000 Token Ring ISA card fails configuration
The system at hand is a RS/6000 7248-100, running AIX 4.3.3.
My quest is to get a Token Ring ISA card to work. The card is a 2971 as called for by the docs.
SMS is happy with the card. I've set the ...
- 129
2
votes
0
answers
73
views
What was the hardware-level data format on IBM 1316 or 2316 disk packs?
A description of the hardware-level track format of the IBM media used on the BESM-6 I've found is as follows (translated by Google with minimal corrections):
Track header structure:
...
- 19.4k
5
votes
1
answer
317
views
Documentation for the SALUT preprocessor of the IBM Macro Assembler 2.0
The IBM Macro Assembler 2.0 included the SALUT program, which was a preprocessor for assembly language for structured programming. It was also included in the IBM Macro Assembler/2.
I am looking for ...
8
votes
1
answer
640
views
Were punching tools for punch cards with rectangular holes easier to keep sharp than those for round holes?
There is a question here on retrocomputing if round punch card holes where mechanically stiffer:
Were round punchcard holes mechanically stiffer?
I wondered if the reason for the rectangular holes on ...
- 1,068