mahoney@primerd.prime.com (12/11/90)
Unless somebody has already done this, I would like to compile a list of the release dates of PC ROM BIOS's used in various PC's. If you have a PC (particularly PC clones) and could send me the release date and the name of the manufacturer of the BIOS (the name of the manufacturer is displayed at boot time) I will compile the list. If and when I get a comprehensive list I will post it to the net. To get the release date of the BIOS do the following: From the DOS prompt type debug. At the '-' prompt type: d f000:fff5 You will see 11 bytes of data displayed (the release date of the BIOS and model). Please send me a copy of these 11 bytes, the name of the manufacturer of the BIOS (as displayed at boot time), and the type of PC (manufacturer and model) to me via e-mail. Alternatively, if somebody knows where such a list already exists, and would be good enough to steer me in that direction I would greatly appreciate it. Thanks! Mike Mahoney mahoney@ssgp62.Prime.COM
andreap@ms.uky.edu (Peach) (12/18/90)
From:
Mueller, S. (1988) Upgrading and repairing PCs. Que Corporation:
Carmel, IN, p. 270.
ID Submodel
Byte Byte System Date Revision
FF 00 PC 4/24/81 -
FF 00 PC 10/19/81 -
FF 00 PC 10/27/82 -
FE 00 PC XT 11/8/82 -
FD 00 PCjr 6/1/83 -
FC 00 PC AT 1/10/84 -
FC 00 PC AT 6/10/85 Rev. 1
FC 01 PC AT 11/15/85 Rev. 0
FC 02 PC XT 286 4/21/86 Rev. 0
FC 04 PS/2 Model 50 2/13/87 Rev. 0
FC 04 PS/2 Model 50Z 4/18/88 Rev. 3
FC 05 PS/2 Model 60 2/13/87 Rev. 0
FB 00 PC XT 1/10/86 Rev. 1
FB 00 PC XT 5/9/86 Rev. 2
FA 00 PS/2 Model 30 9/2/86 Rev. 0
FA 00 PS/2 Model 30 12/12/86 Rev. 1
F9 00 PC-Convertible 9/13/85 Rev. 1
F8 00 PS/2 Model 80/16 3/30/87 Rev. 0
F8 01 PS/2 Model 80/20 10/7/87 Rev. 0
Mueller also lists the following BASIC program for determining the
BIOS date:
10 DEF SEG=&HF000
20 FOR X=&HFFF5 TO &HFFFF
30 PRINT CHR$(PEEK(X));
40 NEXT
50 END
I am not responsible for typo's, etc.!
Harold Peach
Internet: hgpeach@ca.uky.edu