Path: utzoo!attcan!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!elroy.jpl.nasa.gov!lll-winken!xanth!ukma!s.ms.uky.edu!andreap From: andreap@ms.uky.edu (Peach) Newsgroups: comp.os.msdos.programmer Subject: Re: ROM BIOS Release Dates Message-ID: Date: 17 Dec 90 21:04:50 GMT References: <100400001@primerd> Organization: University Of Kentucky, Dept. of Math Sciences Lines: 39 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