majinga wrote on 2024-11-11, 18:14:
Who decide which system is incorrect for the game? The game run flawlessly on all of them.
Yes. The technology has advanced too far, though.
In the XT to 486 era you had about same graphics hardware (ISA VGAs), same keyboard (101 key, no Win95 keys), ball mice and tiny CRT monitors of 13"/14" (0.42mm dot pitch for blurry models), single-speed drives, etc. Standard PC/AT chipset with no ACPI/APIC et .
It was all about same, still.
Beginning with 586/Pentium there was an departure already.
ATX mainboards were introduced, PCI graphics cards got popular, the AT architecture was extended by multi-proccesor capabilities (SMP), the 586 had a new timer (APIT), used PCI bridge, Super I/O to connect ISA devices on motherboard etc.
Average CRT monitors were 15" in size with roughly 0.28mm dot pitch.
With Pentium II and III, the classic Pentium line had ended. The Pentium II was based on Pentium Pro which was a different x86 design.
The graphics cards were AGP now, with focus on Windows 9x. They had 2D and 3D accelerator functions, VGA merely has become a tiny legacy block on the chip die.
Sound cards also begun to appear for PCI bus, with reduced DOS compatibility.
Mice started to become optical and USB, with baud rates and resolutions far away from 1200 Baud that a MS Mouse on a 486 had used.
CRT monitors were 17" in size and had fine resolution (0.21mm or 0.24mm dot pitch) - too detailed for 320x200 graphics.
From a technological point of view, the Pentium II or III barely has any relationship with a traditional DOS PC anymore.
The 486 processor was literally prinitive compared to the superscalar Pentiums of late 90s/early 2000s.
It's basically a form of emulation already.
Edit: I want to add that a "Pentium II PC" might refer to more than just the motherboard and CPU, but also the peripherals and internal expansions that were equally new at the time.
If you had an authentic 486 PC and left everything original,
except for the motherboard replacement, then it might still pass as pseudo period correct in a technical sense, I assume.
Ie, the games might run too fast but the beige AT keyboard, serial ball mouse, and 14" CRT monitor, SB16/PAS16 and an real/pure VGA graphics card (say ET4000AX) are still there.
So with the exception of a mainboard that's "fake" (highly advanced mainboard with a RISC processor that basically emulates/reformats the old x86 instructions on the fly), everything else seems authentic to the game.
It will even recongize your VGA card chip and provide SVGA resolutions.
So yeah, I think you really picked a borderline scenario. 😉
Btw, emulation scene had written DOS-based emulators way into Pentium III days. That's also something hard to categorize. 🤷♂️
Edit: Typos fixed.
Edit:
Let's make a real example, let say my first PC was a 386. And I kept it for long time, because, computer where a lot expensive.
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Let's make a real example, let say my first PC was a 386. And I kept it for long time, because, computer where a lot expensive.
Then a lot of years later I got my second computer, a Pentium.
Now, let's say I had a game that I want to play. I got it in a local store, it was there, it seems nice, and I got it.
The box say recommended CPU 486DX.
Now, I don't have a 486, I only have my old 386 which is too slow, don't fit the minimum requirements.
Or my new PC the pentium, which is even too fast, an not "period correct" for the game. But I can use it and it will run the game very well.
There are tolerances, as I said. A 386DX-40 is about as fast as 486DX-25, for example.
A 286-20 or 286-25 PC can be faster than 386SX-16 PC.
Likewise, an early Pentium 60 PC might be slower than a 486DX3-100 or AMD 5x86 P75.
Edit: Redhill site has a fine overview about the improvements in the 586 generation.
https://www.redhill.net.au/c/c-6.php
Also, speed isn't everything. There are other factors, too. Such as CD-ROM drives generations.
Talkie editions of certain titles were released in early 90s, when CD-ROM drives were single-speed (150KBs), double-speed (300KBs) or quad-speed (600KBs).
Back in these days, the CD-ROM drives were running with slower velocity and had a long spin-down delay (if at all).
Users also ran SmartDrive, to compensate for the slow drives of that era.
If you now run these games on a Pentium II with an typical 48x or 52x ATAPI CD-ROM drive, you might encounter stuttering in game play.
Why? Because the modern CD-ROM drives does try to spin up/down all time.
An utility such as CD-SPEED may help here, if being supported.
The terms associated with the technology are CLV and CAV, also.
They're indirectly being related to the speed "issue".
https://en.wikipedia.org/wiki/Constant_linear_velocity
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