181 lines
6.2 KiB
Markdown
181 lines
6.2 KiB
Markdown
---
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layout: page
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title: Microsoft MS-DOS 4.01
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permalink: /disks/pcx86/dos/microsoft/4.01/
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redirect_from:
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- /disks/pc/dos/microsoft/4.01/
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machines:
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- type: pcx86
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id: ibm5170-msdos401
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config: /devices/pcx86/machine/5170/ega/640kb/rev1/machine.xml
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autoMount:
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A:
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name: MS-DOS 4.01 (Disk 1)
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path: /disks/pcx86/dos/microsoft/4.01/MSDOS401-DISK1.json
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---
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Microsoft MS-DOS 4.01
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---
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The PCjs machine below is running PC-DOS 4.01.
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{% include machine.html id="ibm5170-msdos401" %}
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MS-DOS 4.01 was released in April 1989. The contents of the six 360Kb distribution diskettes are shown below.
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### Directory of MS-DOS 4.01 (Disk 1)
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Volume in drive A is INST V401
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Volume Serial Number is 2A33-13E4
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Directory of A:\
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IO SYS 33337 04-07-89 12:00a
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MSDOS SYS 37376 04-07-89 12:00a
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AUTOEXEC BAT 39 04-07-89 12:00a
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COMMAND COM 37557 04-07-89 12:00a
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CONFIG SYS 96 04-07-89 12:00a
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COUNTRY SYS 12806 04-07-89 12:00a
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DISKCOPY COM 10396 04-07-89 12:00a
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DISPLAY SYS 15692 04-07-89 12:00a
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FDISK EXE 60935 04-07-89 12:00a
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FORMAT COM 22875 04-07-89 12:00a
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KEYB COM 14727 04-07-89 12:00a
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KEYBOARD SYS 23328 04-07-89 12:00a
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REPLACE EXE 19415 04-07-89 12:00a
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SELECT COM 3642 04-07-89 12:00a
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SELECT HLP 28695 04-07-89 12:00a
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SELECT PRT 1329 04-07-89 12:00a
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SYS COM 11456 04-07-89 12:00a
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17 File(s) 18432 bytes free
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### Directory of MS-DOS 4.01 (Disk 2)
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Volume in drive A is OP#1 V401
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Directory of A:\
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ASSIGN COM 5753 04-07-89 12:00a
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ATTRIB EXE 18263 04-07-89 12:00a
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CHKDSK COM 17787 04-07-89 12:00a
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COMMAND COM 37557 04-07-89 12:00a
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COMP COM 9459 04-07-89 12:00a
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DEBUG COM 21574 04-07-89 12:00a
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DISKCOMP COM 9857 04-07-89 12:00a
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EDLIN COM 14069 04-07-89 12:00a
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FC EXE 15807 04-07-89 12:00a
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FILESYS EXE 11129 04-07-89 12:00a
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FIND EXE 5941 04-07-89 12:00a
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IFSFUNC EXE 21739 04-07-89 12:00a
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JOIN EXE 17813 04-07-89 12:00a
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LABEL COM 4458 04-07-89 12:00a
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MEM EXE 20005 04-07-89 12:00a
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MORE COM 2134 04-07-89 12:00a
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SHARE EXE 13424 04-07-89 12:00a
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SORT EXE 5882 04-07-89 12:00a
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SUBST EXE 18467 04-07-89 12:00a
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TREE COM 6302 04-07-89 12:00a
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XCOPY EXE 17055 04-07-89 12:00a
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21 File(s) 56320 bytes free
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### Directory of MS-DOS 4.01 (Disk 3)
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Volume in drive A is OP#2 V401
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Directory of A:\
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COMMAND COM 37557 04-07-89 12:00a
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EMM386 SYS 87776 04-07-89 12:00a
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EXE2BIN EXE 7963 04-07-89 12:00a
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GWBASIC EXE 80608 04-07-89 12:00a
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LINK EXE 43988 04-07-89 12:00a
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PRINT COM 14131 04-07-89 12:00a
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RAMDRIVE SYS 8235 04-07-89 12:00a
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README TXT 17825 04-07-89 12:00a
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SMARTDRV SYS 10224 04-07-89 12:00a
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XMA2EMS SYS 29211 04-07-89 12:00a
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10 File(s) 21504 bytes free
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### Directory of MS-DOS 4.01 (Disk 4)
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Volume in drive A is OP#3 V401
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Volume Serial Number is 2A33-13E4
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Directory of A:\
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4201 CPI 6404 04-07-89 12:00a
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4208 CPI 720 04-07-89 12:00a
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5202 CPI 370 04-07-89 12:00a
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ANSI SYS 9105 04-07-89 12:00a
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APPEND EXE 11154 04-07-89 12:00a
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COMMAND COM 37557 04-07-89 12:00a
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COUNTRY SYS 12806 04-07-89 12:00a
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DISPLAY SYS 15692 04-07-89 12:00a
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DRIVER SYS 5241 04-07-89 12:00a
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FASTOPEN EXE 16718 04-07-89 12:00a
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GRAFTABL COM 10239 04-07-89 12:00a
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GRAPHICS COM 16693 04-07-89 12:00a
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GRAPHICS PRO 9397 04-07-89 12:00a
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HIMEM SYS 6261 04-07-89 12:00a
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KEYB COM 14727 04-07-89 12:00a
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KEYBOARD SYS 23328 04-07-89 12:00a
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MODE COM 22960 04-07-89 12:00a
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NLSFUNC EXE 6878 04-07-89 12:00a
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PRINTER SYS 18914 04-07-89 12:00a
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RAMDRIVE SYS 8235 04-07-89 12:00a
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RECOVER COM 10588 04-07-89 12:00a
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21 File(s) 15360 bytes free
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### Directory of MS-DOS 4.01 (Disk 5)
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Volume in drive A is SELECT V401
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Directory of A:\
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BACKUP COM 36880 04-07-89 12:00a
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EGA CPI 49068 04-07-89 12:00a
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FORMAT COM 22875 04-07-89 12:00a
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LCD CPI 10703 04-07-89 12:00a
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MODE COM 22960 04-07-89 12:00a
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RESTORE COM 36946 04-07-89 12:00a
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SELECT DAT 22999 04-07-89 12:00a
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SELECT EXE 95107 04-07-89 12:00a
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XMA2EMS SYS 29211 04-07-89 12:00a
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9 File(s) 30720 bytes free
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### Directory of MS-DOS 4.01 (Disk 6)
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Volume in drive A is SHELL V401
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Directory of A:\
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CHKDSK COM 17787 04-07-89 12:00a
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COMMAND COM 37557 04-07-89 12:00a
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DISKCOPY COM 10396 04-07-89 12:00a
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DOSUTIL MEU 6660 04-07-89 12:00a
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PCIBMDRV MOS 263 04-07-89 12:00a
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PRINT COM 14131 04-07-89 12:00a
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SHELL HLP 66527 04-07-89 12:00a
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SHELL MEU 4588 04-07-89 12:00a
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SHELL CLR 4406 04-07-89 12:00a
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SHELLB COM 3894 04-07-89 12:00a
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SHELLC EXE 153855 04-07-89 12:00a
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11 File(s) 36864 bytes free
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---
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Additional details about MS-DOS 4.01 from [PC DOS Retro](https://sites.google.com/site/pcdosretro/doshist):
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- distributed on 2 720KB floppy disks [also released on 6 360KB diskettes; the number of 720KB diskettes needs to be verified]
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- maintenance release
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- DOS version is reported as 4.00 [although the VER command reports "4.01"]
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- SHARE loaded for FCB operations on hard disks greater than 32MB
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- IFS driver support added
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- MEM command added to report memory usage
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- new internal command: TRUENAME
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- new external commands: FILESYS, IFSFUNC, MEM
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- new CONFIG.SYS commands: COMMENT, CPSW, IFS, INSTALL, MULTITRACK, REM, SWITCHES
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- new device drivers: SMARTDRV.SYS (MS-DOS), XMA2EMS.SYS, XMAEM.SYS
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- new support file: GRAPHICS.PRO
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- disk buffers could be allocated in expanded memory (BUFFERS /X)
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- DPB, SFT and CDS structures extended
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- new internal version table added
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- DOS swappable data area changed
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- program names added to MCBs
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- INT 21h functions 3305h, 5D0Bh, 5F05h-5F08h, 6507h, 6520h-6523h, 65A0h-65A3h, 69h-6Ch added
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- INT 21h functions 3303h-3304h, 5702h-5704h reserved but unused
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- INT 2Fh multiplex function 1Ah (ANSI.SYS) added
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