MS-DOS® Version 3.20




Label shots reprinted with permission from Microsoft® Corporation

Boot Screen:


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Microsoft(R) MS-DOS(R) Version 3.20

             (C)Copyright Microsoft Corp 1981-1986



A>_


Package Contents:

Box shot(s) reprinted with permission from Microsoft® Corporation
Paper Box Cover, P/N: 036-014-024
User Guide Binder MS-DOS®, P/N: 036-014-017
User Guide Binder GW-BASIC®, P/N: 031-000-009
Program Diskette, P/N: 036-014-022
Supplemental Diskette, P/N: 036-000-012
Diskette plastic holder, P/N: 42005

Collector's notes:
Rated: Moderately Rare. First retail release (non-OEM) enhances value somewhat.
Estimated Value: Mint $120 VG $100 G-$90.

Vital Statistics:



Release Date: July, 1986
Disks in Set: 2
Diskette Form Factor:5.25", DS,DD 9 sectors per track
Capacity: 360k
Sector Size: 512 bytes
Sectors per cluster: 2
Reserved sectors: 1
Root directory entries: 112
Total sectors: 720
Media Descriptor: FD
Sectors per FAT: 2 Track Size: 9 sectors
Disk Sides: 2
Total Tracks: 80
File System: FAT12
Files on Disk1: 36
Files on Disk 2: 8



Version String (Sector 09E, Offset 1B4h):



0D 0A 0D 0A 4D 69 63 72 6F 73 6F 66 74 28 52 29 ¦     Microsoft(R)

20 4D 53 2D 44 4F 53 28 52 29 20 20 56 65 72 73 ¦  MS-DOS(R)  Vers

69 6F 6E 20 33 2E 32 30 0D 0A 20 20 20 20 20 20 ¦ ion 3.20

20 20 20 20 20 20 20 28 43 29 43 6F 70 79 72 69 ¦        (C)Copyri

67 68 74 20 4D 69 63 72 6F 73 6F 66 74 20 43 6F ¦ ght Microsoft Co

72 70 20 31 39 38 31 2D 31 39 38 36 0D 0A 0D 0A ¦ rp 1981-1986


File Listing:

Disk 1 Program: 07/07/1986 12:00p 16,138 IO.SYS 07/07/1986 12:00p 28,480 MSDOS.SYS 07/07/1986 12:00p 1,651 ANSI.SYS 07/07/1986 12:00p 1,725 APPEND.COM 07/07/1986 12:00p 1,523 ASSIGN.COM 07/07/1986 12:00p 8,234 ATTRIB.EXE 07/07/1986 12:00p 9,680 CHKDSK.EXE 07/07/1986 12:00p 23,612 COMMAND.COM 07/07/1986 12:00p 3,808 DISKCOMP.EXE 07/07/1986 12:00p 4,096 DISKCOPY.EXE 07/07/1986 12:00p 1,102 DRIVER.SYS 07/07/1986 12:00p 7,356 EDLIN.EXE 07/07/1986 12:00p 3,050 EXE2BIN.EXE 07/07/1986 12:00p 14,558 FC.EXE 07/07/1986 12:00p 16,830 FDISK.EXE 07/07/1986 12:00p 6,403 FIND.EXE 07/07/1986 12:00p 11,005 FORMAT.EXE 07/07/1986 12:00p 8,210 GRAFTABL.EXE 07/07/1986 12:00p 13,170 GRAPHICS.EXE 07/07/1986 12:00p 9,012 JOIN.EXE 07/07/1986 12:00p 2,886 KEYBDV.EXE 07/07/1986 12:00p 2,948 KEYBFR.EXE 07/07/1986 12:00p 2,940 KEYBGR.EXE 07/07/1986 12:00p 2,892 KEYBIT.EXE 07/07/1986 12:00p 2,983 KEYBSP.EXE 07/07/1986 12:00p 2,886 KEYBUK.EXE 07/07/1986 12:00p 2,750 LABEL.EXE 07/07/1986 12:00p 13,928 MODE.EXE 07/07/1986 12:00p 282 MORE.COM 07/07/1986 12:00p 8,824 PRINT.EXE 07/07/1986 12:00p 6,462 RAMDRIVE.SYS 07/07/1986 12:00p 4,145 RECOVER.EXE 07/07/1986 12:00p 4,852 REPLACE.EXE 07/07/1986 12:00p 1,898 SORT.EXE 07/07/1986 12:00p 9,898 SUBST.EXE 07/07/1986 12:00p 4,607 SYS.COM 36 File(s) 264,824 bytes 0 Dir(s) 81,920 bytes free 362,496 bytes total disk space. 45,056 bytes in 2 hidden files. 235,520 bytes in 34 files. 81,920 bytes available on disk. 1,024 bytes in each allocation unit. 354 total allocation units on disk. 80 allocation units available on disk. Disk 2 Supplemental Programs / GW-BASIC®: 07/07/1986 12:00p 23,404 BACKUP.EXE 07/07/1986 12:00p 15,647 DEBUG.EXE 07/07/1986 12:00p 78,864 GWBASIC.EXE 07/07/1986 12:00p 43,988 LINK.EXE 07/07/1986 12:00p 21,750 RESTORE.EXE 07/07/1986 12:00p 8,544 SHARE.EXE 07/07/1986 12:00p 8,588 TREE.EXE 07/07/1986 12:00p 5,396 XCOPY.EXE 8 File(s) 206,181 bytes 0 Dir(s) 151,552 bytes free 362,496 bytes total disk space. 210,944 bytes in 8 files. 151,552 bytes available on disk. 1,024 bytes in each allocation unit. 354 total allocation units on disk. 148 allocation units available on disk.

MD5 Signatures:

IO SYS E42A35993F28B5E40F5E0B72B63FA7CE MSDOS COM C59EAB3B75A3BBED3E41860B44B7FF5D COMMAND COM ABC62A07AF5074A0B69BE4A6FE7B0EF7 VER Command: MS-DOS Version 3.20

Version History:

Supercedes MS-DOS® 3.10. Added enhancements to support both 5.25" 360k and 3.5" 720k floppy disk drives. Introduced the (XCOPY) command to make buffered copies of directory contents and provides for label checking when formatting a fixed disk. Introduced the (REPLACE) command to update files on target hard drives. Provides backward compatibility for programs that run on XT and AT-class systems running DOS 2.1 or higher. Requires 128k of system memory to operate. GW-BASIC® support includes advanced features such as variable types, trace facilities for easier debugging. Supports file locking and network support. This version was the first Microsoft® release sold through dealers with computer purchases (off the shelf retail debuted with Version 5.00).