Re: comparision of 286 memory modes, did i get it right?

Posted on 2019-05-14, 22:59

by

by Jo22

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

As for NX bit, that's handy against OS/app bugs, sure, but nowdays we have the same mechanism enabled per-page - just like caching since 486 days. Yes, perhaps. Segmentation also allowed to declare certain parts of memory as active/executable and data only. In 32Bit flat mode, the segemention part …

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Re: Oldest computer mouse comes to museum

Posted on 2019-05-14, 21:54

by

by Jo22

in Milliways

in Milliways

To the article writer's defense, apparently, the original press announcement did include a lot of subclauses, so it's easy to loose track. One of the downsides of Germanic languages, I'm afraid. :blush: That's why some coders thread them as programming languages. See https://www.golem.de/news/das- …

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Re: Oldest computer mouse comes to museum

Posted on 2019-05-14, 21:44

by

by Jo22

in Milliways

in Milliways

I did wonder the same when I read it first time. The news was in German originally, I think. - Maybe some foreign press service did the translation one by one, not sure. 🙁 That mouse kind of reminds me of an early trackball, by the way! 😀

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Oldest computer mouse comes to museum

Posted on 2019-05-14, 20:24

by

by Jo22

in Milliways

in Milliways

Good evening everyone, Just saw this news and thought I should share. https://www.kxan36news.com/oldest-mouse-in-th … the-museum-view I had no idea there was something older than the Xerox thing. 😀

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Re: comparision of 286 memory modes, did i get it right?

Posted on 2019-05-14, 16:49

by

by Jo22

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Also, 286 in protected mode is not really any slower than real mode, the "frequent segment changes" are true either way due to 64kB limit of each segment. The 80286 supported variable segment sizes, 1KiB to 64KiB. In theory, it could also support modern day 4KiB blocks, if programmed accordingly. …

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Re: XT speed test?

Posted on 2019-05-14, 16:24

by

by Jo22

in Marvin \ Software

in Marvin \ Software

Found a video of an XT machine (-NEC V20 @8MHz-) running CheckIt..! About 133KB/s were the transfer rate of an old 11MB drive, so it's not that bad, actually. https://www.youtube.com/watch?v=RKVx8Fssmbc Some versions of DOS also run faster than others, I remember. MS-DOS 2.x's boot code could be …

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Re: 486dx2 66 intel - do i need cpu fan?

Posted on 2019-05-14, 11:38

by

by Jo22

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think the486DX2-66 was at the limit between "no fan required" and "fan required". Depending on the manufacturer, voltage and other factors it fell in one of the groups. Personally, I'd just install a generously-sized passive heatsink as a precaution. So when DOS is sitting at the command prompt ‘ …

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Re: No MIDI Music in early win 3.x and win95 games

Posted on 2019-05-14, 11:20

by

by Jo22

in Marvin \ Sound

in Marvin \ Sound

Hello everyone. Can't get music work in early games under Windows 98. Using SoundBlaster 16 ISA, neither FM or External Midi. Little later games like The Incredible Machine 3 is working fine, Midisoft Studio program also good and it's using Midi Mapper as well as early games as I understand. Later …

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Re: Tandy 1000, Lo-Tech XT/IDE, CF and DOS 3.x

Posted on 2019-05-13, 20:55

by

by Jo22

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

One thing that is making this difficult is the fact that I have no working floppy drive. That's a common issue. On my oldest PC, I'm using a Gotek floppy emulator with FlashFloppy because of this. ;) That is the only solution I have found for my situation using MS-DOS 3.3. The card can really only …

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Re: Descent won't work in DOS

Posted on 2019-05-13, 08:58

by

by Jo22

in Marvin \ Software

in Marvin \ Software

That Borland issue with CPUs faster than ~200MHz can also be fixed with the XVI32 Hex editor.

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Re: Replicas of Covox Speech Thing, FTL Sound Adapter and SiliconSoft SoundJr

Posted on 2019-05-13, 06:41

by

by Jo22

in Marvin \ Sound

in Marvin \ Sound

Headphone amps ? I once built one using a pair of EF95 electron tubes. 😁 http://www.elexs.de/ef954.htm (English Translation) For mono, one single tube is enough. Just note that the amp produces DC, so better add a transformer (or two, another one for the source).

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Re: Audio sound card and video card for XP with PCI express

Posted on 2019-05-12, 21:17

by

by Jo22

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Sound card: I had got an Asus Xonar D1 in a previous PC running XP. That card was PCI, though. Maybe a similar card (Xonar DX ?) has PCIe and XP support, not sure. Graphics card: I believe the Geforce 210 still had got XP support and was PCIe. Not sure, however. Another, good card was the Geforce …

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Re: Best way of debugging Win16 programs on 64-bit Windows?

Posted on 2019-05-11, 23:49

by

by Jo22

in PC Emulation

in PC Emulation

Interesting, thanks for mentioning it. Also saw your blog - Btw, there also was a WinMem32 API in Windows 3.1 which could be used for writing flat-memory apps (thus dropping 286 support). I haven't found much information of it, but you can check its presence in Byte Magazine May/92 , p.24, if you …

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Re: Slow games on Windows 3.11 with S3 Trio 3d/2x

Posted on 2019-05-11, 23:28

by

by Jo22

in Marvin \ Software

in Marvin \ Software

Hi, DOS games on Windows 3.1 can be troublesome since there are timing issues. Try to create/change the PIF files for your games. Open PIF-Editor and play with timer emulation and exlusive option. Here are a few more threads that come to mind. Maybe they are useful to you. Games in pure DOS vs Win …

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Re: MS DOS 6.22 / 7 HDD performance enhancement.

Posted on 2019-05-10, 06:08

by

by Jo22

in Marvin \ Software

in Marvin \ Software

There's this XHDD /XDVD/UHDD/UDVD driverpack for dos, supporting DMA and buffers in XMA. (Edit: Small edit. Line with question removed, as I have no desire being sued. ;) ) I guess I shouldn't mention this, but I vaguely recall there once was a unlovely conflict with one author of the accelererated …

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Re: scratchy sound in Crusader No Remorse

Posted on 2019-05-10, 05:46

by

by Jo22

in DOSBox Games/Apps

in DOSBox Games/Apps

^Is this one related to the AudioPCI 3000 ? - If so, then yes. 😀 Re: Games that sound best with GUS?

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Re: Does anyone else prefer ME over 98?

Posted on 2019-05-09, 21:01

by

by Jo22

in Marvin \ Software

in Marvin \ Software

From what I can remember, I found the opposite. Sure, we all know what it was like when a driver would brick a Windows 98 install and you'd end up wiping the hard drive all over again just to get it stable, but Win98 would run perfectly fine for a year or more. My only experience with WinMe …

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Re: De-yellowing of plastics by only leaving them under the sun

Posted on 2019-05-08, 17:58

by

by Jo22

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes, that seems to work. I left an old yellowed desktop case from the cellar outside for about two weeks, exposed to sun, wind and rain. After that time, the yellowed parts, especially the front covers (for the drive bays, plastic) faded to gray/white. Anyway, I'm a bit worried about the health of …

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Re: I need WindowBlinds V4.x

Posted on 2019-05-07, 09:55

by

by Jo22

in Marvin \ Software

in Marvin \ Software

I'm sorry, all I've got is "windowblinds5_public". 🙁 It once was advertised as full version on a magazine CD, but that doesn't mean much.

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Re: "De-noising" Sound Blaster cards

Posted on 2019-05-07, 09:49

by

by Jo22

in Marvin \ Sound

in Marvin \ Sound

I wonder if there are comparison types of the SB16 DAC. So far, I haven't found much information in this regard. When searching for the AK4501-VS, for example, basically all that showed up was a PDF file for an old (but top of the line) radio transceiver (see p.148). https://www.qsl.net/ok1mkq/ …

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