8 Jun
2010
8 Jun
'10
2:51 p.m.
On Tue, 8 Jun 2010, r.stricklin wrote:
I'm helping a local school district with a
technology exhibit. They
have a Dynalogic Hyperion, and are looking for the custom MS-DOS for it.
Anyone who might be able to help is encouraged to contact me off-list.
Sorry, no copies.
I think that what you will want is the Dynalogic Hyperion MS-DOS 2.11.
(Hmmmmm. Did Dynalogic last past 1.25?)
I don't remember there being any major differences, other than MODE.COM
between Dynalogic and other "innovative clones".
Most other versions of MS-DOS should work, except, . . .
Find THEIR MODE.COM If you can find their MODE.COM, but not the right
MS-DOS ("Incorrect DOS Version"), then put a spare copy into DEBUG and
find and neuter
MOV AH, 30h
INT 21
CMP AX, 0B02h
Jx . . .
(The DOS version test is unnecessarily cautious)
also, find GWBASIC from a similar version of DOS (2.00, 2.11), . . .
For later MS-DOS machines, look for version 3.31