12b760f912
This change allows us to pass any number of additional properties to embedPC(), which in turn can override properties contained in the XML file; the only property overrides currently supported are 'state' (which overrides any 'state' property set in the XML's <computer> element) and 'automount' (which overrides any 'automount' property set in the XML's <fdc> element). The goal is to make it easier to reuse XML machine definitions, by allowing commonly altered component attributes to be overridden.
186 lines
6.6 KiB
Markdown
186 lines
6.6 KiB
Markdown
---
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layout: page
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title: MS-DOS 4.00
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permalink: /disks/pc/dos/microsoft/4.00/
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machines:
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- type: pc
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id: ibm5170-msdos400
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---
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MS-DOS 4.00
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---
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The PCjs machine below is running PC-DOS 4.00.
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{% include machine.html id="ibm5170-msdos400" %}
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MS-DOS 4.00 was released in October 1988. The contents of the six 360Kb distribution diskettes are shown below.
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### Directory of MS-DOS 4.00 (Disk 1)
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Volume in drive A has no label
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Volume Serial Number is 1456-15F4
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Directory of A:\
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IO SYS 33321 10-06-88 12:00a
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MSDOS SYS 37376 10-06-88 12:00a
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COMMAND COM 37556 10-06-88 12:00a
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AUTOEXEC BAT 39 10-06-88 12:00a
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CONFIG SYS 96 10-06-88 12:00a
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COUNTRY SYS 12806 10-06-88 12:00a
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DISKCOPY COM 10396 10-06-88 12:00a
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DISPLAY SYS 15692 10-06-88 12:00a
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FDISK EXE 60935 10-06-88 12:00a
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FORMAT COM 22859 10-06-88 12:00a
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KEYB COM 14727 10-06-88 12:00a
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KEYBOARD SYS 23328 10-06-88 12:00a
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REPLACE EXE 19415 10-06-88 12:00a
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SELECT COM 3642 10-06-88 12:00a
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SELECT HLP 28695 10-06-88 12:00a
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SELECT PRT 1329 10-06-88 12:00a
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SYS COM 11456 10-06-88 12:00a
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17 File(s) 18432 bytes free
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### Directory of MS-DOS 4.00 (Disk 2)
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Volume in drive A has no label
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Volume Serial Number is 2B61-1BE2
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Directory of A:\
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COMMAND COM 37556 10-06-88 12:00a
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ASSIGN COM 5753 10-06-88 12:00a
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ATTRIB EXE 18263 10-06-88 12:00a
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CHKDSK COM 17787 10-06-88 12:00a
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COMP COM 9459 10-06-88 12:00a
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DEBUG COM 21574 10-06-88 12:00a
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DISKCOMP COM 9857 10-06-88 12:00a
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EDLIN COM 14069 10-06-88 12:00a
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FC EXE 15807 10-06-88 12:00a
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FILESYS EXE 11129 10-06-88 12:00a
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FIND EXE 5941 10-06-88 12:00a
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IFSFUNC EXE 21739 10-06-88 12:00a
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JOIN EXE 17813 10-06-88 12:00a
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LABEL COM 4458 10-06-88 12:00a
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MEM EXE 20005 10-06-88 12:00a
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MORE COM 2134 10-06-88 12:00a
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SHARE EXE 13424 10-06-88 12:00a
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SORT EXE 5882 10-06-88 12:00a
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SUBST EXE 18467 10-06-88 12:00a
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TREE COM 6302 10-06-88 12:00a
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XCOPY EXE 17055 10-06-88 12:00a
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21 File(s) 56320 bytes free
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### Directory of MS-DOS 4.00 (Disk 3)
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Volume in drive A has no label
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Volume Serial Number is 2047-15E0
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Directory of A:\
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COMMAND COM 37556 10-06-88 12:00a
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EMM386 SYS 87776 10-06-88 12:00a
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EXE2BIN EXE 7963 10-06-88 12:00a
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GWBASIC EXE 80608 10-06-88 12:00a
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LINK EXE 43988 10-06-88 12:00a
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PRINT COM 14131 10-06-88 12:00a
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RAMDRIVE SYS 8235 10-06-88 12:00a
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SMARTDRV SYS 10224 10-06-88 12:00a
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XMA2EMS SYS 29211 10-06-88 12:00a
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9 File(s) 39936 bytes free
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### Directory of MS-DOS 4.00 (Disk 4)
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Volume in drive A has no label
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Volume Serial Number is 0569-15F3
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Directory of A:\
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COMMAND COM 37556 10-06-88 12:00a
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ANSI SYS 9105 10-06-88 12:00a
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APPEND EXE 11154 10-06-88 12:00a
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COUNTRY SYS 12806 10-06-88 12:00a
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DISPLAY SYS 15692 10-06-88 12:00a
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DRIVER SYS 5241 10-06-88 12:00a
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FASTOPEN EXE 16702 10-06-88 12:00a
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GRAFTABL COM 10239 10-06-88 12:00a
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GRAPHICS COM 16693 10-06-88 12:00a
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GRAPHICS PRO 9397 10-06-88 12:00a
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HIMEM SYS 6261 10-06-88 12:00a
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KEYB COM 14727 10-06-88 12:00a
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KEYBOARD SYS 23328 10-06-88 12:00a
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MODE COM 22960 10-06-88 12:00a
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NLSFUNC EXE 6878 10-06-88 12:00a
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PRINTER SYS 18914 10-06-88 12:00a
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RAMDRIVE SYS 8235 10-06-88 12:00a
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RECOVER COM 10588 10-06-88 12:00a
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4201 CPI 6404 10-06-88 12:00a
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4208 CPI 720 10-06-88 12:00a
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5202 CPI 370 10-06-88 12:00a
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README TXT 14148 10-12-88 9:13p
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22 File(s) 1024 bytes free
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### Directory of MS-DOS 4.00 (Disk 5)
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Volume in drive A has no label
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Volume Serial Number is 1F41-15E1
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Directory of A:\
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BACKUP COM 36880 10-06-88 12:00a
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EGA CPI 49068 10-06-88 12:00a
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FORMAT COM 22859 10-06-88 12:00a
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LCD CPI 10703 10-06-88 12:00a
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MODE COM 22960 10-06-88 12:00a
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RESTORE COM 36946 10-06-88 12:00a
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SELECT DAT 22999 10-06-88 12:00a
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SELECT EXE 95107 10-06-88 12:00a
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XMA2EMS SYS 29211 10-06-88 12:00a
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9 File(s) 30720 bytes free
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### Directory of MS-DOS 4.00 (Disk 6)
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Volume in drive A has no label
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Volume Serial Number is 1101-1B52
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Directory of A:\
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CHKDSK COM 17787 10-06-88 12:00a
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DISKCOPY COM 10396 10-06-88 12:00a
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PCIBMDRV MOS 263 10-06-88 12:00a
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PRINT COM 14131 10-06-88 12:00a
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SHELL CLR 4406 10-06-88 12:00a
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SHELL HLP 66527 10-06-88 12:00a
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SHELL MEU 4588 10-06-88 12:00a
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SHELLB COM 3894 10-06-88 12:00a
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SHELLC EXE 153855 10-06-88 12:00a
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DOSUTIL MEU 6660 10-06-88 12:00a
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COMMAND COM 37556 10-06-88 12:00a
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11 File(s) 36864 bytes free
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---
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One important new feature of MS-DOS 4.00 was the ability to update the system files (IO.SYS and MSDOS.SYS)
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of any boot disk, by moving the first two directory entries (and the contents of the first three data sectors)
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as needed to make room for the new IO.SYS and MSDOS.SYS files.
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The SYS command in older versions of MS-DOS would report "No room for system on destination disk" if the first
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two directory entries (or the first three data sectors) were unavailable. However, after using the MS-DOS 4.00
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SYS command, it usually becomes possible to install older MS-DOS versions as well.
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Learn more about the history of the SYS command from [Microsoft Support](https://support.microsoft.com/en-us/kb/66530).
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Additional details about MS-DOS 4.00 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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- 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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