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Re: CGA/EGA "pixel-doubling" of 320-pixel wide modes

Posted on 2023-06-26, 21:39

in Marvin \ Video

in Marvin \ Video

There was a lot of unused stuff left in MDA, some of which may have come from ibms earlier 5100 system. If I had to guess it would have been a more fully featured card with some sort of low res monochrome graphics mode and basic support for an unreleased high resolution color screen (text only) It’s …

Re: Are Windows 2.03 / Windows 3.0 useful?

Posted on 2023-06-26, 20:06

in Milliways

in Milliways

RM Nimbus? 🤷‍♂️ Edit: Picture.. That must be it, I vaguely remember someone running a cludged version of windows 3.1 on the 186 version of the machine (2.x and 3.0 were personalized versions for that machine specifically with its odd more than 640k configurations) Reading this the 3.1 beta real …

Re: 8086 (vs 80286) Popularity in DIY/Clone Systems in the late 80s

Posted on 2023-06-26, 19:50

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

An 8086 system more or less had to be an XT due to only having 1 16 bit irq and 20 address bits. I suppose a psueodo AT could be created from an 8086 but it’s “16 bit slot” could not be fully AT compatible and you would have a bit of whackyness with the keyboard controller, timer and the interlaced …

Re: B/W TV monitors with colour?

Posted on 2023-06-26, 19:29

in Marvin \ Video

in Marvin \ Video

Hi there! I was wondering if RGB video monitors exist that use a monochrome CRT with an LCD filter or RGB wheel. Essentially the reverse to a monochrome video camera with a colour wheel attached. https://m.youtube.com/watch?v=q1LvleZcJm0 So far, I only know about Nipkow style screens and …

Re: Are Windows 2.03 / Windows 3.0 useful?

Posted on 2023-06-26, 17:29

in Milliways

in Milliways

I vaguely recall a British 80186 system that could address -800kb of base ram that had some personalized stuff for various versions of windows, I don’t remember if they made a cludge so it could run Windows 3.1 Although the amount of software isn’t massive there are a number of Windows games and …

Re: 8086 (vs 80286) Popularity in DIY/Clone Systems in the late 80s

Posted on 2023-06-23, 21:27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

In the mid 80’s you started seeing your first dark cream cases in the Computer Shopper and your first Pc/XT replacement motherboards (that were faster) You remember correctly, X86 kit is a rather generous way of saying an empty motherboard With ram , crystal and cpu provided separately so you could …

Re: 8086 (vs 80286) Popularity in DIY/Clone Systems in the late 80s

Posted on 2023-06-23, 20:53

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Was there a DIY scene back then already? I thought it appeared somewhere in Pentium era, when parts became properly standardized, and even then there were some quirks with memory modules and graphics cards with certain motherboards. I have never seen a DIY built computer so old (modern retro …

Re: 8086 (vs 80286) Popularity in DIY/Clone Systems in the late 80s

Posted on 2023-06-23, 20:05

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Most Pc spare parts magazine’s from the 1980’s have never been digitized (computer shopper as a good example) Preparing for the Incoming Computer Shopper Tsunami — June 5, 2023 http://ascii.textfiles.com/archives/5543 the scannageddon has begun Holy crap, I figured they were lost to time. This …

Re: 8086 (vs 80286) Popularity in DIY/Clone Systems in the late 80s

Posted on 2023-06-23, 00:21

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You could check the ads in computer magazines (from your country) from that time to see what was being sold I would like to be proven wrong… Most Pc spare parts magazine’s from the 1980’s have never been digitized (computer shopper as a good example) Other mags were almost entirely focused on …

Re: Obscure enhanced CGA clones with 640x400 monochrome mode

Posted on 2023-06-18, 17:30

in Marvin \ Video

in Marvin \ Video

I’m uncertain what type of video card it was but the original NCR 286 machines had a custom 640x400 monitor and video card at the time I could never figure out what it was compatible with so was stuck with plain CGA in graphics mode. Color text was beautiful

Re: Windows 9x: There is not enough memory available to run this program (when there is plenty of memory)

Posted on 2023-06-15, 04:03

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Not unlimited pointers or stacks You run out eventually that’s why you needed to restarted 98

Re: The 486DX-50 (not DX2) is functionally similar to other 486 right? if I set the MB to run at 33mhz can I run it fanl

Posted on 2023-06-14, 20:56

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Irony thing is, I had a Am486DX 40 back in the day. This thing wouldn't stay running even at 25MHz, as it get hot. So had to go and buy heatsink with fan. After that, attempted overclocking to 50MHz and that stayed this way for years playing games. Cheers, I had several 486sx25’s overclocked to 40 …

Re: 8086 (vs 80286) Popularity in DIY/Clone Systems in the late 80s

Posted on 2023-06-14, 19:25

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I know. I just meant to say that CPU type and XT/AT aren't always tied to each others. True, but generally speaking, the term 'XT' was short for 'IBM PC/XT or compatible'... effectively XT became synonymous with 8088 machines (or V20 ones). 8086 and 186-based machines were really rare, so pretty …

Re: Does Anyone Recognize This Hercules Compatible Video Card?

Posted on 2023-06-14, 17:07

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Odd, I have a very similar card but mine has a color/ mono switch. Might have to pull the label off the ic Stranger is having a light pen header but no oscillator for CGA

Re: 8086 (vs 80286) Popularity in DIY/Clone Systems in the late 80s

Posted on 2023-06-14, 16:56

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

8086 systems we’re definitely not uncommon after 1984 They were many times considered a cheap way to have at like performance with 8 bit XT peripherals and lower cost. The Tandy 1000rl was 8086 based in 1991. From what I remember is that XT regardless of CPU type was always cheap and popular right …

Re: Win98 SE Network: Everything seems to work, but no IP

Posted on 2023-06-14, 16:41

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Does your board happen to use a via chipset?

Re: The 486DX-50 (not DX2) is functionally similar to other 486 right? if I set the MB to run at 33mhz can I run it fanl

Posted on 2023-06-14, 03:18

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ok Thanks. I dont know much about DX-50s, I was worried it was an experimental version of a 486 that just runs hot all the time. It like all 33mhz+ 486s do run hot all the time but they are also perfectly stable, a heatsync makes any antique chip last longer even if it doesn’t “need it” Good Luck

Re: New forum suggestions/Feedback

Posted on 2023-06-12, 20:16

in Milliways

in Milliways

ldeveraux wrote on 2023-06-12, 17:50: schmatzler wrote on 2023-06-12, 17:34: Well we have Lynx, Links, eLinks and w3m. And to an extent, Netsurf - which only supports CSS2. I realize this is off topic, but... Why would you not use CSS? What's the point? I don’t know but my cursor looks great

Re: When buying a 486 motherboard back in the day. What accessories came with it?

Posted on 2023-06-12, 15:08

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It’s worth noting even those that did want to support segmentation and 286 could not reasonably do so because of the very high cost and low quality of 286 dos extenders compared to FREE for 32 bit. There were free 286 extenders, Borland shipped one with its compilers starting in 1992. Free DOS/4GW …

Re: New forum suggestions/Feedback

Posted on 2023-06-10, 04:48

in Milliways

in Milliways

And it's only gotten worse, on 4k displays I can barely even see the cursor. Which is definitely a scaling problem with your operating system, because I can see it just fine on my 4K monitor (Chrome, Windows 11). Although I do agree that not having an option to use the regular system cursor is a …

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