PCjs Machines
Home of the original IBM PC emulator for browsers.
COMPAQ MS-DOS 1.12
Released in 1983 by COMPAQ Computer Corp, this version of MS-DOS reports itself as:
The COMPAQ Personal Computer DOS
Version 1.12
(C) Copyright COMPAQ Computer Corp. 1982, 83
(C) Copyright Microsoft 1981, 82
To learn more about this double-sided 320Kb diskette, see the Directory Listing and Boot Sector below.
[PCjs Machine "ibm5150-compaq112"]
Waiting for machine "ibm5150-compaq112" to load....
Directory of COMPAQ MS-DOS 1.12
Volume in drive A has no label
Directory of A:\
IOSYS COM* 1998 11-28-83 12:00p
MSDOS COM* 6140 11-28-83 12:00p
COMMAND COM 4959 11-28-83 12:00p
LINK EXE 41856 11-28-83 12:00p
EDLIN COM 2432 11-28-83 12:00p
SYS COM 645 11-28-83 12:00p
DEBUG COM 6619 11-28-83 12:00p
BASIC COM 549 11-28-83 12:00p
BASICA COM 547 11-28-83 12:00p
FORMAT COM 3376 11-28-83 12:00p
EXE2BIN EXE 1280 11-28-83 12:00p
DISKCOPY COM 1946 11-28-83 12:00p
DISKCOMP COM 1433 11-28-83 12:00p
MODE COM 1800 11-28-83 12:00p
CHKDSK COM 1770 11-28-83 12:00p
COMP COM 1484 11-28-83 12:00p
WORDS 1242 11-28-83 12:00p
BASICA EXE 54304 11-28-83 12:00p
TEST EXE 18560 11-28-83 12:00p
DEMO BAT 14 11-28-83 12:00p
DEMO BAS 7936 11-28-83 12:00p
DEMO1 BAS 18048 11-28-83 12:00p
DEMO2 BAS 17920 11-28-83 12:00p
DEMO3 BAS 21248 11-28-83 12:00p
DEMO4 BAS 6656 11-28-83 12:00p
JUGGLER DAT 16128 11-28-83 12:00p
USA DAT 16128 11-28-83 12:00p
INTEREST BAS 384 11-28-83 12:00p
28 file(s) 257402 bytes
52224 bytes free
COMPAQ MS-DOS 1.12 Boot Sector
The boot sector of the COMPAQ MS-DOS 1.12 disk image contains the following bytes:
00000000 fa bc e7 01 b8 c0 07 8e d0 fb 8e d8 8e c0 33 c0 |..............3.|
00000010 cd 13 b8 01 02 bb 00 02 b9 04 00 33 d2 e8 8b 00 |...........3....|
00000020 eb 1c bb da 00 8a 07 3c 24 74 0c 53 b4 0e bb 07 |.......<$t.S....|
00000030 00 cd 10 5b 43 eb ee 33 c0 cd 16 eb c3 c3 fc 8b |...[C..3........|
00000040 f3 bf c4 00 b9 0b 00 f3 a6 75 d7 83 c6 15 b9 0b |.........u......|
00000050 00 f3 a6 75 cd b8 01 02 bb 00 02 b9 02 00 33 d2 |...u..........3.|
00000060 e8 48 00 8a 27 80 fc fe be 26 01 74 0a 80 fc ff |.H..'....&.t....|
00000070 74 02 eb ae be 3c 01 b8 60 00 50 07 8b 04 33 db |t....<..`.P...3.|
00000080 8b 4c 02 8b 54 04 e8 22 00 8b 44 06 03 5c 08 8b |.L..T.."..D..\..|
00000090 4c 0a 8b 54 0c e8 13 00 8b 44 0e 03 5c 10 8b 4c |L..T.....D..\..L|
000000a0 12 8b 54 14 e8 04 00 ff 2e 52 01 bf 05 00 57 50 |..T......R....WP|
000000b0 cd 13 72 03 58 58 c3 33 c0 cd 13 58 5f 4f 75 ee |..r.XX.3...X_Ou.|
000000c0 58 e9 5e ff 49 4f 53 59 53 20 20 20 43 4f 4d 4d |X.^.IOSYS COMM|
000000d0 53 44 4f 53 20 20 20 43 4f 4d 0a 0d 4e 6f 6e 2d |SDOS COM..Non-|
000000e0 53 79 73 74 65 6d 20 64 69 73 6b 20 6f 72 20 64 |System disk or d|
000000f0 69 73 6b 20 65 72 72 6f 72 0a 0d 52 65 70 6c 61 |isk error..Repla|
00000100 63 65 20 61 6e 64 20 73 74 72 69 6b 65 20 61 6e |ce and strike an|
00000110 79 20 6b 65 79 20 77 68 65 6e 20 72 65 61 64 79 |y key when ready|
00000120 0a 0d 24 47 41 53 01 02 08 00 00 00 08 02 00 02 |..$GAS..........|
00000130 01 01 00 00 08 02 00 10 01 02 00 00 06 02 03 00 |................|
00000140 00 01 08 02 00 0c 01 01 00 00 03 02 00 10 01 01 |................|
00000150 00 01 00 00 60 00 28 43 29 43 6f 70 79 72 69 67 |....`.(C)Copyrig|
00000160 68 74 20 43 4f 4d 50 41 51 20 43 6f 6d 70 75 74 |ht COMPAQ Comput|
00000170 65 72 20 43 6f 72 70 6f 72 61 74 69 6f 6e 20 31 |er Corporation 1|
00000180 39 38 32 00 00 00 00 00 00 00 00 00 00 00 00 00 |982.............|
00000190 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001a0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001d0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
000001e0 00 00 00 00 00 00 00 e7 01 00 00 00 00 00 00 00 |................|
000001f0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
It is identical to the COMPAQ MS-DOS 1.10 Boot Sector, so refer to that page for more information.