Re: Yet another 286 build.

Posted on 2022-07-12, 14:51

by

by Jo22

in Marvin \ System Specs

in Marvin \ System Specs

Is there a proven fact that 287 fpu can run completelly async to cpu ? Hi again, I know it's late, but I've kept searching for some documents and found something. 🙂 "[..] Additionally, older 286 boards were often configured to run the coprocessor at only two-thirds the speed of the CPU, making use …

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Re: When PC became soulless for you?

Posted on 2022-07-11, 21:38

by

by Jo22

in Milliways

in Milliways

The fun part has shifted to SBCs like the Raspberry and similar, IMHO . Additionally, even modern PCs can run Linux very well. I feel the same. I'm stuck with a Pi for roughly 5 years now. As a PC alternative. I started with a Pi 3, then "upgraded" to a Pi 4. Experimenting with PiFM, PySSTV and …

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Re: PC-9801 Bios Battery need to replaced

Posted on 2022-07-11, 19:12

by

by Jo22

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

majestyk wrote on 2022-07-11, 19:08: Isn´t 1N4148 a standard Si-Diode? Correct. My bad. I meant BAT48.. 🙂

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Re: PC-9801 Bios Battery need to replaced

Posted on 2022-07-11, 19:03

by

by Jo22

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

But i read i cant replace a ni-cd with a ni-mh . Hi! Was it a generic article about NiCad/NiMH, by any chance ? If so, then yes, generally, that's right. You can't charge, for example, an AA NiMH rechargeable battery with an old NiCd charger. The technology is so different. Old NiCd accus could be …

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Re: Connect Vt100 terminal into a dos/win311 machine

Posted on 2022-07-11, 18:36

by

by Jo22

in DOS

in DOS

This was in a time when simple serial terminals (glass terminals) were still around and less expensive than PCs. Back then, terminals weren't just meant as input/output devices for microcomputers (say, CP/M PCs), but also to service equipment. And to dial into distant host computers via acoustic …

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Re: Windows 3.1 vs 3.11 (NOT FOR WORKGROUPS)

Posted on 2022-07-11, 14:41

by

by Jo22

in Marvin \ Software

in Marvin \ Software

There was a bug in Control Panel that got fixed in 3.11, I vaguely remember. In Windows 3.10, it (sometimes ?) did ask for the wrong diskette number, if a new sound card driver or printer driver was added. So it was necessary to insert a completely different diskette to make Windows happy.

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Re: When PC became soulless for you?

Posted on 2022-07-10, 18:41

by

by Jo22

in Milliways

in Milliways

Hm. From the 2010s onwards, with the start of Windows 8 I suppose ? When UEFI Secure Boot/TPM became the norm and traditional BIOS use declined ? Since the ~2010s, PCs look all the same to me. Black/Silver, Blue LEDs.. They look like big smartphones. Bleak, soulless (no personality). Nothing new, no …

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Re: Recommended PCI NIC?

Posted on 2022-07-10, 16:45

by

by Jo22

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Virtual PC uses an DEC 21140 (DEC 21040) Ethernet-Adapter.

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Re: Win 95 demo for Genesis/MD

Posted on 2022-07-10, 09:12

by

by Jo22

in Milliways

in Milliways

Speaking of PC games, there was at least one "real" MD computer. https://segaretro.org/EZcom Forum entry Little is known of this one, sadly. I think I've seen some YT footage (ads, reviews) at some point..

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Recommended Reading..

Posted on 2022-07-10, 07:20

by

by Jo22

in Milliways

in Milliways

Hi everyone, Found an interesting retro magazine named Paleotronic . It seems to be from Australia and has physical releases! 🙂 It's not just about old games, but also covers electronics/technology and history. Like CB radio, telecommunications, space exploration, early online services (Q-Link, …

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Re: Short question - are there any ISA VGA cards existing with FBAS/Cinch output ?

Posted on 2022-07-09, 01:51

by

by Jo22

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There are VGA to AV converters.. If the 5155 has some free space inside, a converter's PCB could be installed inside. VGA signals can be tapped via feature connector or by tapping the VGA connector pins on the solder side. Technically, maybe it's also possible to force VGA to monochrome mode (via …

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Re: Win 95 demo for Genesis/MD

Posted on 2022-07-08, 12:12

by

by Jo22

in Milliways

in Milliways

? Yeah, that would the press likely say. 😅 The developer calls its game 'mikeyeldey95'.

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Re: Olivetti/Logabax/AT&T/Toshiba 640x400 hi-res graphics mode

Posted on 2022-07-07, 18:21

by

by Jo22

in Marvin \ Video

in Marvin \ Video

Plasma wrote on 2022-07-03, 05:03: FYI QB has a BIOS check before it allows SCREEN 4 to run. If you make this change to either QB.EXE/QBASIC.EXE or your compiled program, then 640x400 will work on "Super CGA" Compaq/Toshiba systems and DOSBox-X. Thank you! ^^ Edit: Here they go.

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Re: What games will run on an IBM PS/2 Model 30 5830 (8086)?

Posted on 2022-07-07, 18:05

by

by Jo22

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Seems like a version of Jill of the Jungle can be made to run on an 8086, albeit slowly Test drive the dual and a bunch of other shareware like chopper. That's cool! There's also a patch on vcfed.org that patches Windows 3.0 VGA driver for 808x compatibility. There are others that will run on an XT …

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Re: What games will run on an IBM PS/2 Model 30 5830 (8086)?

Posted on 2022-07-07, 16:10

by

by Jo22

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So what I'm hearing is it's not really suitable for anything. Bummer. :/ I would certainly prefer a 286 model anyway. Nah, don't despair. I'd recommend checking the games you would want to play in an PC/XT emulator first. That would give you a "worst-as-possible" experience. An 8086 system is quite …

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Re: What games will run on an IBM PS/2 Model 30 5830 (8086)?

Posted on 2022-07-07, 15:08

by

by Jo22

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Early VGA cards (ISA) do have CGA/EGA/MGA emulation modes in silicon. A mode utility can activate them. Composite CGA is out if question, though. 😔

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Win 95 demo for Genesis/MD

Posted on 2022-07-07, 12:58

by

by Jo22

in Milliways

in Milliways

Hi everyone, Just saw something funny! 😆 Maybe of interest for those of you with a flash cart and a CRT monitor? https://www.youtube.com/watch?v=g2hr8CgU3uM I hope the famous blue screen is included, too! That's what made Windows 9x so iconic! 😉 Have fun. Best regards, Jo22 Edit: Link fixed (ww. to …

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Re: Failing SMD solder on old devices (pins of VGA chipsets etc. getting loose), how common is that?

Posted on 2022-07-07, 12:38

by

by Jo22

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think the same. But perhaps it was a cheap soldering process, or the automated process wasn't mature yet. SMD mounted parts were still kind of new in the 1980s. Most parts on a PCB used conventional mounting, except computer chips with a huge number of individual pins (if they didn't use sockets). …

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Re: MacintoshPi Project - full-screen Mac OS 7/8/9 for Raspberry Pi

Posted on 2022-07-07, 12:20

by

by Jo22

in Macintosh Emulation

in Macintosh Emulation

That's really cool, kudos to you! 😎👍 I just wished that Pis would be would be more available in my country (Germany). When I checked eBay last time, both the ancient Pi 1 (with the yellow Composite jack) and the current Pi 400 (keyboard model) seem to affordable/available, but not so much Pi 2 and …

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Re: How to prevent Windows ME from suggesting MS-DOS mode?

Posted on 2022-07-05, 09:44

by

by Jo22

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That's sad. I assume MS tried very hard to make Me appear independent from MS-DOS. Me is essentially using MS-DOS as a bootloader/runtime here. Another idea. Check out some beta versions of Me. Perhaps earlier versions still have the dialog still intact. Good luck.

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