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                 DOS Functional Comparison   - January 1994
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                           IBM  CONFIDENTIAL
  (The chart is IBM CONFIDENTIAL because it refers to PC DOS 6.3,which
   is not yet announced.  There is a version of the chart without 6.3.)

+  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 PC DOS  MS-DOS MS-DOS
                                               6.1    6.3     6.0    6.2

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

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

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

Anti-virus
  Fuzzy logic detects new variants              x      x       -      -
  Avoids false alerts by other antivirus prods  x      x       -      -
  Scans Boot Manager boot records for viruses   x      x       -      -
  Optimal virus default protection              x      x       -      -
  Customize alert messages                      x      x       -      -
 Can find viruses in PK-LITEd .EXE's           x      x       -      -
  Passes mutation engine tests                  x      x       -      -
  Scheduled automatic scan for viruses          x      x       -      -
  Viruses detected  (number)                  1500   2000     800    800
 RAM requirements  (for TSRs)                1-6K   1-6K    7-44K  7-44K



                           IBM  CONFIDENTIAL

                                             -----IBM-----  ..Microsoft..
                                             PC DOS PC DOS  MS-DOS MS-DOS
                                               6.1    6.3     6.0    6.2
Editor
  Edit multiple files simultaneously            x      x       -      -
  Set margins or tabs                           x      x       -      -
  Reflow paragraph                              x      x       -      -
  Keystroke recorder                            x      x       -      -
  Undo                                          x      x       -      -
  Split screen view                             x      x       -      -
  Draw boxes around text                        x      x       -      -
  Sort, add or multiply within a marked area    x      x       -      -

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

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

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

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

                                             -----IBM-----  ..Microsoft..
                                             PC DOS PC DOS  MS-DOS MS-DOS
                                               6.1    6.3     6.0    6.2

                           IBM  CONFIDENTIAL

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