MS-DOS® Version 3.30A DTK OEM




Label shots reprinted with permission from Microsoft® Corporation
Label shots reprinted with permission from DTK® Corporation

Boot Screen:

No 'A' sub-revision in header

Current date is Tue 05-17-1987

Enter new date (mm-dd-yy):



Current time is 09:11:51.36

Enter new time:



Microsoft(R) MS-DOS(R) Version 3.30

             (C)Copyright Microsoft Corp 1981-1987



A>_


Package Contents:

Box shot(s) reprinted with permission from DTK® Corporation
Plastic diskette binder, P/N: none
Disk 1, Operating, P/N: A1-002-000
Disk 2, GW-BASIC®, P/N: A1-002-001


Collector's notes:
Rated: Rare OEM version.
Estimated Value: Mint $100 VG $90 G-$80.

Vital Statistics:

Release Date: July, 1987
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 Disk Sides: 2
Total Tracks: 80
File System: FAT12



Version String (Sector 40, Offset 7Hh):



00 00 00 00 00 00 20 28 43 29 20 43 6F 70 79 72 ¦        (C) Copyr

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

6F 72 70 20 31 39 38 31 2C 31 39 38 37 20 20 20 ¦ orp 1981,1987

20 20 20 20 56 65 72 73 69 6F 6E 20 33 2E 33 30 ¦     Version 3.30


File Listing:

Disk 1: 07/24/1987 12:00a 22,357 IO.SYS 07/24/1987 12:00a 30,128 MSDOS.SYS 07/24/1987 12:00a 17,089 4201.CPI 07/24/1987 12:00a 459 5202.CPI 07/24/1987 12:00a 1,647 ANSI.SYS 07/24/1987 12:00a 5,794 APPEND.EXE 07/24/1987 12:00a 1,530 ASSIGN.COM 07/24/1987 12:00a 10,656 ATTRIB.EXE 07/24/1987 12:00a 9,819 CHKDSK.COM 07/24/1987 12:00a 25,276 COMMAND.COM 07/24/1987 12:00a 4,183 COMP.COM 07/24/1987 12:00a 11,254 COUNTRY.SYS 07/24/1987 12:00a 5,848 DISKCOMP.COM 07/24/1987 12:00a 6,264 DISKCOPY.COM 07/24/1987 12:00a 11,259 DISPLAY.SYS 07/24/1987 12:00a 1,165 DRIVER.SYS 07/24/1987 12:00a 7,495 EDLIN.COM 07/24/1987 12:00a 3,050 EXE2BIN.EXE 07/24/1987 12:00a 3,888 FASTOPEN.EXE 07/24/1987 12:00a 48,919 FDISK.COM 07/24/1987 12:00a 6,403 FIND.EXE 07/24/1987 12:00a 11,671 FORMAT.COM 07/24/1987 12:00a 6,136 GRAFTABL.COM 07/24/1987 12:00a 13,943 GRAPHICS.COM 07/24/1987 12:00a 9,612 JOIN.EXE 07/24/1987 12:00a 9,041 KEYB.COM 07/24/1987 12:00a 2,346 LABEL.COM 07/24/1987 12:00a 15,440 MODE.COM 07/24/1987 12:00a 282 MORE.COM 07/24/1987 12:00a 3,029 NLSFUNC.EXE 07/24/1987 12:00a 8,995 PRINT.COM 07/24/1987 12:00a 4,268 RECOVER.COM 07/24/1987 12:00a 4,132 SELECT.COM 07/24/1987 12:00a 1,946 SORT.EXE 07/24/1987 12:00a 10,552 SUBST.EXE 07/24/1987 12:00a 4,725 SYS.COM 36 File(s) 340,601 bytes 0 Dir(s) 5,120 bytes free 362,496 bytes total disk space. 53,248 bytes in 2 hidden files. 304,128 bytes in 34 files. 5,120 bytes available on disk. 1,024 bytes in each allocation unit. 354 total allocation units on disk. 5 allocation units available on disk. Disk 2: 07/24/1987 12:00a 29,976 BACKUP.COM 07/24/1987 12:00a 15,866 DEBUG.COM 07/24/1987 12:00a 49,065 EGA.CPI 07/24/1987 12:00a 80,592 GWBASIC.EXE 07/24/1987 12:00a 19,735 KEYBOARD.SYS 07/24/1987 12:00a 10,752 LCD.CPI 07/24/1987 12:00a 39,172 LINK.EXE 07/24/1987 12:00a 13,559 PRINTER.SYS 07/24/1987 12:00a 6,481 RAMDRIVE.SYS 07/24/1987 12:00a 13,234 REPLACE.EXE 07/24/1987 12:00a 35,650 RESTORE.COM 07/24/1987 12:00a 8,608 SHARE.EXE 07/24/1987 12:00a 3,540 TREE.COM 07/24/1987 12:00a 11,216 XCOPY.EXE 14 File(s) 337,446 bytes 0 Dir(s) 18,432 bytes free 362,496 bytes total disk space. 344,064 bytes in 14 files. 18,432 bytes available on disk. 1,024 bytes in each allocation unit. 354 total allocation units on disk. 18 allocation units available on disk.

MD5 Signatures:

IO SYS F836E744CB63C489D4EB864EE7528683 MSDOS COM 71B8CCDF9C1BDFCB1CD5F5F3AFF1F6FF COMMAND COM 7D6E73849A47A6BA0906085FA99AFC55 VER Command: MS-DOS Version 3.30

Version History:

MS-DOS® continued to be released for OEM manufacturers despite the retail releases that began with version 3.20. In particular, the 3.3x run was well represented in OEM versions. This particular DTK version was an extremely rare find, and we were quite fortunate to locate a version branded as an 'A' variant for the 3.30 release, despite it appearing to be an almost exact match of MS-DOS® 3.30. Our forensic analysis of the kernel file did not locate anything notable enough to warrant the minor.minor version designation, yet we remain intrigued that it is the only 'A' version of 3.30 we have ever seen.