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For questions regarding the display formats of retrocomputers.

14
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6answers
2k views

CP/M in less than 80 columns

The standard for business computing in the seventies and eighties was 80 columns, and CP/M was primarily for business computing, so it's unsurprising that CP/M typically ran in 80 columns. For example,...
3
votes
1answer
113 views

IBM 5153 monitor vertical resolution

The IBM 5153, the color monitor accompanying the original IBM PC, was designed to work with the CGA graphics card, vertical resolution 200 scan lines. This was quite unsurprising and straightforward. ...
2
votes
2answers
380 views

Why not SCART for early color monitors

By the early eighties, it was starting to be considered desirable for computers to have color monitors. Home computers often made do with a TV set and accepted the consequent low resolution, but ...
13
votes
3answers
1k views

How can you connect an Amiga 500/600/1000/2000 to a modern monitor?

I have an Amiga 500 that I'd like to get up and running again, but the 1084 monitor with which I used to use it has flyback transformer issues. What options are available to hook it up to a modern ...
4
votes
2answers
259 views

Spectrum clones 512x192 mode usable text resolution

The original ZX Spectrum has a resolution of 256x192, for 32x24 text. Some later clones add a 512x192 mode. The most obvious thing to do with that is try to display 64x24 text. According to https://en....
4
votes
2answers
156 views

With better character handling capability, why didn't PC-98 system succeed in rest of East Asia?

From my understanding, an important advantage PC-98 have over IBM compatible PC was that it is better at handling ideograph based characters which are common in East Asian countries. Why didn't other ...
8
votes
1answer
266 views

“Holographic”/3D arcade games

This is vague, but I remember seeing several different arcade machines, probably in the early 90s, with various sorts of "holographic" 3D displays. By that I mean that they produced depth perception ...
2
votes
2answers
529 views

Timeline of progressive scan CRT resolutions

In chronological order of roughly1 increasing total pixel count (world record style), please list progressive scan raster CRT monitors (not vector monitors) that were in production (not prototypes). ...
16
votes
10answers
5k views

640x480 color display in 1980

I'm working on an alternate history story in which the protagonists, Silicon Valley computer entrepreneurs, are trying to release a graphical workstation in 1980, with the capability of displaying ...
10
votes
2answers
441 views

Did the VIC-20 support raster scanline tricks like the Commodore 64?

I've been programming the C64 on/off for over 30 years (wow). However, I have a few VIC-20's I want to program. I never had a VIC-20 as a kid so I haven't had much exposure to them. Am I correct in ...
7
votes
0answers
181 views

First flat-panel display technology capable of 640x480

What was the first display technology capable of creating a flat-panel display with 640x480 resolution? (And reasonable size, say 12" to 14".) As far as I can see, three flat-panel display ...
7
votes
3answers
638 views

Atari 800XL, black screen on power on - how to diagnose the problem?

I've got an atari 800 XL that is broken - when I power on, there's no reaction. It seems there is at least something sent to display, as TV detects a signal, and turns full black. The chips are ...
8
votes
1answer
427 views

Using Apple II with modern monitor displays snowflake

I recently picked up a (seems like) fully functional Apple IIc on eBay to play around with. I do have a modern TV that has RCA input port that the Apple IIc supports. However, when I plug in the Apple ...
13
votes
2answers
1k views

Square pixels and TV output

Another question about color computers in the days of CRT televisions! There is a consensus that pixels should be square, and so they typically are on purpose-designed monitors. However, looking at a ...
2
votes
2answers
245 views

How to render FORTRAN overprinting in HTML? [closed]

Consider a FORTRAN program РRINТ 1 1 FОRМАТ(1Х,’ GООD ВУЕ НЕLLО, WОRLD’/’+ХХХХ ХХХ’) ЕND (YMMV re the number of leading spaces to align Xes with "GOOD BYE") Its output, using the SIMH ...
23
votes
16answers
2k views

What computers had redefinable character sets?

My first computer was an Exidy Sorcerer, bought in the late '70s. It featured a full keyboard including lower case, on screen text of 64 B&W characters by 30 rows, 2 MHz z-80 processor, up to 48 ...
13
votes
6answers
1k views

Converting SCART to VGA/Jack

I have a few home-microcomputers that use SCART to output both audio & video to TV screens such as the Atari STE 1040 and the Sony MSX Hitbit 501. I don't have room to store old cathode-ray ...
13
votes
2answers
344 views

Interfacing with vintage Canon monitor

I bought a vintage Canon monitor off a friend which I'd like to interface with and use as a cool retro monitor. The problem is that I can't find anything useful about this monitor after days of ...
4
votes
2answers
724 views

LCD Displays with the Intel 8080

A colleague of mine mentioned that in college he wrote a slot machine program on an Intel 8080 using an LCD display. What kind of display communication protocol existed on the Intel 8080? How was ...
52
votes
2answers
7k views

Why are a lot of monochrome computer monitors green?

In my perception, the most common color for monochrome computer monitors is green or white/grey, though I have seen orange monitors. Is this genuinely the case, and if so, is there a reason for it?
11
votes
1answer
699 views

What kind of computer monitor do I need for a SGI O2?

The SGI O2 has a standard VGA port, but when I connect it to a CRT computer monitor, I do not get a signal. Do I need a specific kind of monitor in order to use the O2?
13
votes
1answer
2k views

Is it possible to use an Amstrad CPC464 with a modern monitor or TV

During a recent move I lost the monitor for my Amstrad CPC464. Is it possible to adapt the output of this to work on a modern monitor or on television set?
14
votes
3answers
607 views

How do I connect a modern display, keyboard, and mouse to a Power Macintosh 6100?

I recently got a Apple Power Macintosh 6100 for free. It powers up and seems to work, so I want to try it out and see what it's like. Unfortunately, the important ports and connectors are "non-...
23
votes
5answers
1k views

Did any Amiga 500 games or programs (apart from paint programs) use more than 32 colours?

While the Original Chip Set (OCS) and Enhanced Chip Set (ECS) Amiga computers had the 32 x 2 colour EHB (Extra Half-Brite) and 4096 colour HAM (Hold And Mofify) screen modes, where these ever used ...