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IBM EduQuest PC

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by aj35

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You guys think these PC's are good in today's environment

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by thechas

IBM does not list any information on their site about the EdUQuest line.

So, they are either fairly old, or a 3rd party system that IBM marketed.

Either way, I suspect that they will have problems running the latest software.

If the software you are running works on them, and they are holding up, then just keep running them.

Otherwise, you need to evaluate the cost of support and productivity versus the cost of new systems.

Chas

by aj35

Summary of IBM EduQuest Fifty, #1
This is a high-level summary of general characteristics of the machine. For details (which are of course subject to change) the machine itself, and the manuals concerning it on the manual racks, must be consulted.
Owner, if known:
Donated to the Educational Technology Center by IBM.
CPU:
Intel 486SX
Operating system:
DOS 5, with Windows 3.1
Bus architecture:
ISA
Physical memory:
1 MB conventional, plus 7MB extended.
"High" ("adapter", trans-640K) memory usage:
High loading of PC-NFS, mouse, etc.
Memory management:
? 386Max v7, to enable EMS usage and optimise positioning of RAM addresses in "adapter memory". (See the memory map diagrams for default ROM positioning in the EduQuest handbooks on the manual shelves.)
386Max was obliged to place the 64K page frame for EMS in the top 64K of the 640K "conventional" memory region, as no 64K space was still available in high memory. NOTE:The Virtual Control Program Interface (VCPI) provided by 386Max v7 is essential for permitting multiple programs, including Windows 3.1, to use the 486 in protected mode (otherwise, the first program to establish protected mode gets exclusive access to it).
? Virtual memory is enabled in Windows 3.1 . The ICSS system, listed below, has considerable memory demands, including the running of parallel server tasks.
Local storage:
? 212 MB hard disc
IMPORTANT SETUP PARAMETERS:
? Cyl Heads Pre LZ (landing zone) sectors size
? 683 16 0 683 38 212
THESE ARE SOFTWARE-CONFIGURABLE AND MUST BE CORRECT,
or the hard drive will become inaccessible (in which case a floppy or ROMDos will be needed for booting and restoration of the parameters). To obtain adequate use of the "adapter memory" space (640k to 1m zone) the "autodetect" mode for disc parameters, which depends on shadow BIOS' occupying part of "adapter memory", had to be

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