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  1. The Plus 300 Baud Modem was $99 while the 1200...

    The Plus 300 Baud Modem was $99 while the 1200 Baud Modems (Plus and ISA) were $200 according to the 87 catalog. IIRC, there were sales on the 300 Baud Plus modem to get it out of the store making it...
  2. That is just how EMS 3.2 was designed. Makes...

    That is just how EMS 3.2 was designed. Makes sense if most programs (Lotus) were working with 64 kB data segments that having the EMS page as a complete segment would make moving data much easier.
    ...
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    Theoretically, about 270 kB per side if doing one...

    Theoretically, about 270 kB per side if doing one continuous file. Allowing for the Cassette BASIC standard of a 256 byte leader and the first 256 byte sector being used solely to store file name and...
  4. Be careful when allocating the UMB. Segment E...

    Be careful when allocating the UMB. Segment E includes the ROM for the hard drive adapter. Segment A is used by EGA and VGA in graphical mode. Loading something high isn't too useful if data gets...
  5. What does Manifest show as to the memory...

    What does Manifest show as to the memory utilization? I guess Segment E can't be used on an AT and the video card has ROM in the C000-C7FF range so you are close to the maximum possible.

    If I...
  6. Took a bit longer to find than I expected but...

    Took a bit longer to find than I expected but QRAM.TEC is the technote explaining 286 use of QRAM. https://www.pcorner.com/list/AOS/QWAUG92.ZIP/QRAM.TEC/
  7. QRAM will work on an AT. The hardware provided...

    QRAM will work on an AT. The hardware provided with an EMS 4.0 or EEMS card will provide most of the functionality of the special 286 chipsets. Load high is possible but you will need the utilities...
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    I am fairly sure that 3.5" floppy drives only...

    I am fairly sure that 3.5" floppy drives only used +5 volts.
  9. Yes, EMS will create frames in UMB blocks up to...

    Yes, EMS will create frames in UMB blocks up to about 176 kB* available in 16kB frames. With QRAM or Move'Em, applications or drivers can be loaded into those frames and run. That can free up some...
  10. I think the best choice would be to remove the...

    I think the best choice would be to remove the 128kB board to simplify operation, permit the Rampage to backfill up to 640, and convert part of the memory into expanded. You will still have 8.5 MB...
  11. I can't guarantee that no hard drive will have a...

    I can't guarantee that no hard drive will have a bug in the firmware that might cause data loss. Follow the usual procedures of verifying every write and keeping a backup and the probability is quite...
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    From an old sales GENIE sales catalog: Z-RAM...

    From an old sales GENIE sales catalog:

    Z-RAM 3-D/4Meg Zubair Interfaces (213)408-6715 105.00

    Z-RAM is the universal, reliable and compact 2.5 to 4Mb upgrade in 1
    kit for...
  13. IIRC, it is necessary to use either BEGINS.EXE or...

    IIRC, it is necessary to use either BEGINS.EXE or BEGIN.EXE skipping the CYGNUS.COM on a hard drive.
  14. The Norton cache was a bit smaller. I think PC...

    The Norton cache was a bit smaller. I think PC Tools cache was as well. I haven't much experience with the lesser known ones that have been recommended in the past like PC-Kwik, Lightning, or Cache86.
  15. You will need to split the allocation of the...

    You will need to split the allocation of the card. The AST card I had used a DOS program to reassign memory between extended and expanded in 512kB blocks. I would recommend placing 1 MB of EMS and...
  16. HIMEM.SYS should use the HMA to place about 64k...

    HIMEM.SYS should use the HMA to place about 64k of DOS into the 1024-1068 k region. Are you loading VDISK which uses a allocation method that can prevent HIMEM from getting any extended memory?

    To...
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    It has been a long time since I last wrote a line...

    It has been a long time since I last wrote a line editor but that seems likely to be very slow when inserting text into a line or splitting a line into two.
  18. You can use the drive with unaligned sectors...

    You can use the drive with unaligned sectors though there is a noticeable performance loss. A 4k write (expected for NTFS) will require writing to two different 4k sectors on the disk and rewriting...
  19. MS-DOS 3.3 has probably the largest pool of...

    MS-DOS 3.3 has probably the largest pool of applications needing it as the earliest version. The improvements to country/code page support caused a lot of software to be revised for it, at least if...
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    The first Xeon models were Pentium II Xeons. ...

    The first Xeon models were Pentium II Xeons.

    I would expect that the topic would include both AMD and Cyrix/VIA counterparts even though demarcation lines might not be quite as clear.
  21. A number of palmtops used Chips & Technologies...

    A number of palmtops used Chips & Technologies F8680: an XT (including support for 8-bit ISA slots) plus CGA on a chip though augmented with a memory manager capable of handling up to 64 MB.
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    The forum holds a lot more posts than that. If...

    The forum holds a lot more posts than that. If you look at the bottom of thread listing, you will see a drop down list labeled Show Threads From the... which defaults to 2 months. Select it and...
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    Have a review of one in Baby-AT format:...

    Have a review of one in Baby-AT format: https://www.anandtech.com/show/316

    There were even Socket 478 (Pentium 4) motherboards in the Baby-AT layout with AT style keyboard ports. I have a...
  24. At least one store claims to offer it....

    At least one store claims to offer it. http://www.cablesonline.com/40sc506roinc.html
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    A 486DX4-100 would match up fairly evenly with a...

    A 486DX4-100 would match up fairly evenly with a Pentium-60. Vogons has a couple of lengthy benchmarking threads which might be helpful to you. https://www.vogons.org/viewforum.php?f=46

    This can...
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