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Am playing around with Dataperfect, and have noticed a problem, which seems to be alluded to here also. Data Perfect uses the shift and arrow keys in order to move from field to field on fields that ...
Tomas By's user avatar
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12 votes
1 answer
218 views

In the post Extracting ROM constants from the 8087 math coprocessor's die , the constant ROM from the Intel 8087 was reverse engineered and all 42 constants extracted. One of these constants is 1....
forest's user avatar
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-1 votes
0 answers
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Can anybody recognize this? https://youtu.be/bR1pGF2XOMw?t=112 Looks like disk drives. Edit: Image from the original link: Other shots of this device from the official music video, showing the whole ...
Bog Was's user avatar
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13 votes
1 answer
1k views

All I've got is a picture of the Servus 7771 terminal, which was apparently used to access the Servus 100 host (whose manual is visible on the photo): There appears to be nothing on the web about ...
Neppomuk's user avatar
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33 votes
1 answer
3k views

As I remember, DOS had to update a backup copy of the FAT with each disk write, which I imagine would have greatly slowed write speed. Yet I don't recall any recovery software that used the second ...
Miss Understands's user avatar
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6 votes
0 answers
201 views

The Commodore 128 keyboard has, in addition to the normal keys, three mechanical toggle switches: SHIFT LOCK, CAPS LOCK (ASCII/DIN in the German model) and 40/80 DISP. One of them broke apart on my ...
TeaRex's user avatar
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10 votes
1 answer
661 views

I got a nice Atari 600XL with a 1010 "Program Recorder" (cassette player). Too bad the motor drive belt broke and I am now trying to find a good replacement. I already tried a square belt, ...
Bart Friederichs's user avatar
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10 votes
2 answers
1k views

When I was growing up I had access to a Mac Classic fully kitted out with a full 4MB of RAM and an internal SCSI 40MB hard drive. I never got to open the thing up (and wouldn't have known how to do so ...
Karl Knechtel's user avatar
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long-term storage of 3.5" IPS LCD displays from handheld consoles is very complicated? Do they degrade rapidly at high temperatures of 34-38°C and humidity of 55-68%? Under these conditions, do ...
gamer fan87's user avatar
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15 votes
1 answer
573 views

The paper What Every Computer Scientist Should Know About Floating-Point Arithmetic uses the Cray's systems as an example of computers without a guard bit: Although most modern computers have a guard ...
Morel's user avatar
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18 votes
6 answers
3k views

Nowadays, you can use Ansible, Chef, Salt and others, to manage Linux/*BSD systems, keep them updated, install software in a reproducible way etc... What tools were used to manage large UNIX installs (...
Renan's user avatar
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16 votes
4 answers
4k views

DOS on the 8088 had to process interrupts and return. If a higher-priority interrupt occurred, the current handler was pushed and the higher-priority interrupt was serviced. 4.77 million seems like a ...
Miss Understands's user avatar
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3 votes
0 answers
162 views

I have a TRS-80 4P that works beautifully, and I'd love to set it up as a terminal to other equipment I own (a Linux server, or a PiDP-11), but I'm having trouble finding actual, functional terminal ...
ccarlson's user avatar
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10 votes
2 answers
1k views

My new Amiga, running as an "fs-uae" process on an Ubuntu laptop, stops here: My impression is that it wants a disk. After a lot of investigation, I understood that kickstart (ca. "...
peterh's user avatar
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0 votes
1 answer
139 views

This question follows on from my previous one, but I'm trying to make things a bit simpler for myself for now, and first of all connect my now working HX-20 to an old PC which has a nine pin serial/...
harlandski's user avatar
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