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Additional DOS and OS/2 directory listings

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Jeff Parsons 2016-01-17 22:53:42 -08:00
commit 59b7ca3f79
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disks/pc/dos/microsoft/4.01/README.md
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@ -17,9 +17,9 @@ The PCjs machine below is running PC-DOS 4.01.
Vital Statistics
---
MS-DOS 4.01 was released in April, 1989. The contents of the six 360Kb distribution diskettes are shown below.
MS-DOS 4.01 was released in April 1989. The contents of the six 360Kb distribution diskettes are shown below.
***DISK 1***
### Directory of MS-DOS 4.01 (Disk 1)
Volume in drive A is INST V401
Volume Serial Number is 2A33-13E4
@ -42,9 +42,9 @@ MS-DOS 4.01 was released in April, 1989. The contents of the six 360Kb distribu
SELECT HLP 28695 04-07-89 12:00a
SELECT PRT 1329 04-07-89 12:00a
SYS COM 11456 04-07-89 12:00a
15 File(s) 18432 bytes free
17 File(s) 18432 bytes free
***DISK 2***
### Directory of MS-DOS 4.01 (Disk 2)
Volume in drive A is OP#1 V401
Directory of A:\
@ -70,9 +70,9 @@ MS-DOS 4.01 was released in April, 1989. The contents of the six 360Kb distribu
SUBST EXE 18467 04-07-89 12:00a
TREE COM 6302 04-07-89 12:00a
XCOPY EXE 17055 04-07-89 12:00a
21 File(s) 56320 bytes free
21 File(s) 56320 bytes free
***DISK 3***
### Directory of MS-DOS 4.01 (Disk 3)
Volume in drive A is OP#2 V401
Directory of A:\
@ -87,9 +87,9 @@ MS-DOS 4.01 was released in April, 1989. The contents of the six 360Kb distribu
README TXT 17825 04-07-89 12:00a
SMARTDRV SYS 10224 04-07-89 12:00a
XMA2EMS SYS 29211 04-07-89 12:00a
10 File(s) 21504 bytes free
10 File(s) 21504 bytes free
***DISK 4***
### Directory of MS-DOS 4.01 (Disk 4)
Volume in drive A is OP#3 V401
Volume Serial Number is 2A33-13E4
@ -116,9 +116,9 @@ MS-DOS 4.01 was released in April, 1989. The contents of the six 360Kb distribu
PRINTER SYS 18914 04-07-89 12:00a
RAMDRIVE SYS 8235 04-07-89 12:00a
RECOVER COM 10588 04-07-89 12:00a
21 File(s) 15360 bytes free
21 File(s) 15360 bytes free
***DISK 5***
### Directory of MS-DOS 4.01 (Disk 5)
Volume in drive A is SELECT V401
Directory of A:\
@ -132,9 +132,9 @@ MS-DOS 4.01 was released in April, 1989. The contents of the six 360Kb distribu
SELECT DAT 22999 04-07-89 12:00a
SELECT EXE 95107 04-07-89 12:00a
XMA2EMS SYS 29211 04-07-89 12:00a
9 File(s) 30720 bytes free
9 File(s) 30720 bytes free
***DISK 6***
### Directory of MS-DOS 4.01 (Disk 6)
Volume in drive A is SHELL V401
Directory of A:\
@ -150,21 +150,13 @@ MS-DOS 4.01 was released in April, 1989. The contents of the six 360Kb distribu
SHELL CLR 4406 04-07-89 12:00a
SHELLB COM 3894 04-07-89 12:00a
SHELLC EXE 153855 04-07-89 12:00a
11 File(s) 36864 bytes free
11 File(s) 36864 bytes free
One important new feature of MS-DOS 4.01 was the ability to update the system files (IO.SYS and MSDOS.SYS)
of any boot disk, by moving the first two directory entries (and the contents of the first three data sectors)
as needed to make room for the new IO.SYS and MSDOS.SYS files.
The SYS command in older versions of MS-DOS would report "No room for system on destination disk" if the first
two directory entries (or the first three data sectors) were unavailable. However, after using the MS-DOS 4.01
SYS command, it usually becomes possible to install older MS-DOS versions as well.
Learn more about the history of the SYS command from [Microsoft Support](https://support.microsoft.com/en-us/kb/66530).
---
Additional details about MS-DOS 4.01 from [PC DOS Retro](https://sites.google.com/site/pcdosretro/doshist):
- distributed on 2 720KB floppy disks [or 6 360KB diskettes]
- distributed on 2 720KB floppy disks [also released on 6 360KB diskettes; the number of 720KB diskettes needs to be verified]
- maintenance release
- DOS version is reported as 4.00 [although the VER command reports "4.01"]
- SHARE loaded for FCB operations on hard disks greater than 32MB