---
layout: page
title: MS-DOS 1.25
permalink: /disks/pc/dos/microsoft/1.25/
machines:
  - type: pc-dbg
    id: ibm5150-msdos125
    config: /devices/pc/machine/5150/mda/64kb/debugger/machine.xml
    automount:
      A:
        path: /disks/pc/dos/microsoft/1.25/MSDOS-COMPAQ-111.json
---

MS-DOS 1.25
---

There was no MS-DOS 1.25 *per se*.  Instead, there were assorted OEM releases of MS-DOS based on version 1.25.

Here, we have two such releases:

* MS-DOS v1.25 (Compaq v1.11)
* MS-DOS v1.25 (Compaq v1.12)

Directory listings of each of these 360Kb diskettes are provided [below](#directory-listings).

{% include machine.html id="ibm5150-msdos125" %}

Directory Listings
---

### Directory of MS-DOS v1.25 (Compaq v1.11) Disk

	 Volume in drive A has no label

	Directory of A:\

	IOSYS    COM      1998 05-13-83  12:00p
	MSDOS    COM      6136 05-13-83  12:00p
	COMMAND  COM      4959 05-13-83  12:00p
	LINK     EXE     41856 05-13-83  12:00p
	EDLIN    COM      2432 05-13-83  12:00p
	SYS      COM       645 05-13-83  12:00p
	DEBUG    COM      6619 05-13-83  12:00p
	BASIC    COM       549 05-13-83  12:00p
	BASICA   COM       547 05-13-83  12:00p
	FORMAT   COM      3296 05-13-83  12:00p
	EXE2BIN  EXE      1280 05-13-83  12:00p
	DISKCOPY COM      1812 05-13-83  12:00p
	DISKCOMP COM      1291 05-13-83  12:00p
	MODE     COM      1800 05-13-83  12:00p
	CHKDSK   COM      1720 05-13-83  12:00p
	COMP     COM      1484 05-13-83  12:00p
	WORDS             1242 05-13-83  12:00p
	BASICA   EXE     54272 05-13-83  12:00p
	TEST     EXE     18560 05-13-83  12:00p
	DEMO     BAT        14 05-13-83  12:00p
	DEMO     BAS      7808 05-13-83  12:00p
	DEMO1    BAS     17920 05-13-83  12:00p
	DEMO2    BAS     17792 05-13-83  12:00p
	DEMO3    BAS     21120 05-13-83  12:00p
	DEMO4    BAS      6528 05-13-83  12:00p
	JUGGLER  DAT     16128 05-13-83  12:00p
	USA      DAT     16128 05-13-83  12:00p
	INTEREST BAS       384 05-13-83  12:00p
	       28 file(s)     256320 bytes

	Total files listed:
	       28 file(s)     256320 bytes
	                       53248 bytes free

### Directory of MS-DOS v1.25 (Compaq v1.12) Disk

	 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

	Total files listed:
	       28 file(s)     257402 bytes
	                       52224 bytes free