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  1. Y

    I am thinking of the AMD Am486 and Energy Star right now

    The original one had no APM or SMI support. (Of course, the "Am486Plus" chip fixed this, but I am talking about before that)
  2. Y

    The Resurrection of a Broken 5175

    Thinking about it, I wonder why IBM even bothered with the EGA in the first place when the EGA and PGC used the same tubes. I believe even VGA is compatible with the PGC too.
  3. Y

    Maximum Memory Supported by 80386 Motherboard

    I think many early ones may only support 16MB.
  4. Y

    CP-DOS and EGA/VGA timeline

    December 1985: first EGA clones came out, work on "CP-DOS" started. late 1986: FOOTBALL work started assuming EGA: https://www.os2museum.com/wp/playing-football/ May 1987: first MS OS/2 SDK released with only IBM VGA hardware. December 1987: first OEM MS OS/2 release, first non-IBM VGA clones.
  5. Y

    Why wasn't the 386sx CPU developed as a drop-in replacement for the 286?

    Which is why I focused on the 387DX, which the average user is more likely to touch than the 386DX anyway.
  6. Y

    Why wasn't the 386sx CPU developed as a drop-in replacement for the 286?

    I don't think the 386 would fit in a PLCC package anyway.
  7. Y

    Why wasn't the 386sx CPU developed as a drop-in replacement for the 286?

    Which also reminds me I should ask why the 387DX was packaged in 68-pin PGA instead of CLCC/PLCC
  8. Y

    386 or 486 with Hercules/MDA as primary or only graphics adapter

    reminds me of this: https://groups.google.com/g/comp.os.os2.advocacy/c/Z3pFyFanRn8/m/QadNvLspaiMJ (I assume that the 386SX only barely existed in 1989 when the OS/2 2.0 project first started, right)
  9. Y

    I assume that the 74LS181 (not 74181) didn't became common....

    Which reminds me of projects like the TV Typewriter. It probably helped that acoustic couplers were legal thanks to Hush-a-Phone and Carterfone.
  10. Y

    I assume that the 74LS181 (not 74181) didn't became common....

    Though early microprocessors were expensive as well. It took until MOS Technology 6502 for the cost to come down.
  11. Y

    I assume that the 74LS181 (not 74181) didn't became common....

    Part of the reason I suggested the 74LS181 is that before the 74LSxxx chips were invented these 74xxx chips would also have consumed a lot of power as well.
  12. Y

    I assume that the 74LS181 (not 74181) didn't became common....

    In this case I used the 74LS181, which also consumed less power.
  13. Y

    I assume that the 74LS181 (not 74181) didn't became common....

    (For those that are not well aware, 74LSxxx consumes much less power than the original 74xxx chips)
  14. Y

    I assume that the 74LS181 (not 74181) didn't became common....

    until the microprocessor became common, right? It would be funny if the 74LS181 caught on instead of the microprocessor.
  15. Y

    IBM PC's 8088 replaced with a Motorola 68000

    For example, the difference between MC68000G8 and MC68010P8.
  16. Y

    IBM PC's 8088 replaced with a Motorola 68000

    I am talking about the difference between the "G" and the "P" packaging for example.
  17. Y

    IBM PC's 8088 replaced with a Motorola 68000

    Nope, I don't think this is true. You can see this in the different package types.
  18. Y

    IBM PC's 8088 replaced with a Motorola 68000

    I mean that it was based on a die shrink, which is why it took so long.
  19. Y

    IBM PC's 8088 replaced with a Motorola 68000

    http://www.easy68k.com/paulrsm/dg/dg17.htm "As a result, work on a faster (shrunk) 68000 has been set aside and all hands are concentrating their efforts on the 68010. We understand that the 68010 will be the chip targeted for speed improvement. The good news is that the 68010 is pin compatible...
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