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                 DOS Functional Comparison   - January 1994
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 (A version of this chart which also includes PC DOS 6.3 is available.
  It is IBM Confidential, as PC DOS 6.3 is not yet announced.)

+  changes from COMPAR TXT of 16/12/93
  changes from COMPAR2 TXT of 16/12/93
  changes from COMPAR3 TXT of 22/12/93

                                                  IBM    ..Microsoft..
                                                PC DOS   MS-DOS MS-DOS
                                                  6.1      6.0    6.2

Memory Management
+ Dynamic memory optimiser                         x        -      -
  UMB device drivers for 8088/80286                x        -      -
+ Tracks and optimises multiple configurations     -        -      -
  Advanced Upper Memory usage editor               x        -      -
  UMA scanning in addition to EMM386 scanning      x        -      -
  Optimiser supports memory managers               x        -      -
    other than EMM386

Disk Compression
  Automated compression un-install routine         x        -      x
  Universal Data Exchange(transportable floppies)  x        -      -
  Auto-mount compressed floppies                   x        -      x
  Compression Preview                              x        -      -
  ScanDisk                                         -        -      x
  Bypass compression on startup                    x        -      x
  DoubleGuard                                      -        -      x
  Password protection                              x        -      -
+ Compression-aware utilities                      x        -      -
+ "Non-empty" diskette compression                 -        -      x

Back up
  Tape backups                                     x        -      -
  Backup Netware file attributes                   x        -      -
  Restores files from DOS command line             x        -      -
  File viewers                                     x        -      -
  High speed floppy disk support                   x        -      -
  Schedule backup                                  x        -      -
+ Additional DD tape support                       -        -      -

Anti-virus
  Fuzzy logic detects new variants                 x        -      -
  Avoids false alerts by other antivirus products  x        -      -
  Scans Boot Manager boot records for viruses      x        -      -
  Optimal virus default protection                 x        -      -
  Customize alert messages                         x        -      -
 Can find viruses in PK-LITEd .EXE's              x        -      -
  Passes mutation engine tests                     x        -      -
  Scheduled automatic scan for viruses             x        -      -
  Viruses detected  (number)                     1500      800    800
 RAM requirements  (for TSRs)                   1-6K     7-44K  7-44K




                                                  IBM    ..Microsoft..
                                                PC DOS   MS-DOS MS-DOS
                                                  6.1      6.0    6.2
Editor
  Edit multiple files simultaneously               x        -      -
  Set margins or tabs                              x        -      -
  Reflow paragraph                                 x        -      -
  Keystroke recorder                               x        -      -
  Undo                                             x        -      -
  Split screen view                                x        -      -
  Draw boxes around text                           x        -      -
  Sort, add or multiply within a marked area       x        -      -

PC Management Tools
  No swap DISKCOPY                                 -        -      x
  Interactive AUTOEXEC.BAT                         -        -      x
  MOVE, COPY, XCOPY confirmation on overwrite      -        -      x
  SMARTDrive as a read-only cache by default       x        -      x
+ Enhanced DEFRAGmentation tool                    -        -      x

Data Recovery
+ Undelete directories (from DOS interface)        x        -      -
  Undelete file viewers                            x        -      -
  Recover files manually                           x        -      -
  Full-screen Undelete DOS user interface          x        -      -

Other Utilities
  Program Scheduler                                x        -      -
  PCMCIA Support                                   x        -      -
  Pen Support                                      x        -      -
  QBASIC                                           -        x      x

Miscellaneous
  Command Reference                              Hard-     On-    On-
                                                 copy     line   line
+ MSCDEX  (CD-ROM support)                        OEM       x      x
  ISO Font Support                                 x        -      -
  Lock/Unlock/Eject Drives                         x        -      -
  Multi-config aware install                       -        -      -
  Performance Enhancements                         x        -      -
  Display of country thousands separator           -        -      x
  Mouse loads into Upper Memory Block              -        -      x

                                                  IBM    ..Microsoft..
                                                PC DOS   MS-DOS MS-DOS
                                                  6.1      6.0    6.2


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