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- TO ALL READERS....THIS REVIEW OF IBM'S NEW RELEASE OF DOS 4.0 CONTAINS
- OPINIONS OF SOLELY OF THE AUTHOR THOMAS M. EATON. IT IS INTENDED
- SOLELY AS INFORMATIONAL AND NOT TO BE CONSTRUED AS AN ENDORSEMENT OF
- THE PRODUCT DESCRIBED.
-
- After reading the review of DOS 4.0 contained in the Archive file
- DOS4EVAL.ARC, I felt it necessary to create this document for the
- purpose of showing the "other side" of the story....
- First my opinions on the enhancements on the new release of
- 4.0....then I wish to restate some of the other comments made by the
- author of the above mentioned Archive file. I highly reccomend any
- person reading this article also download DOS4EVAL.ARC for
- comparision purposes.
-
- Major Enhancements:
-
- 1.) Foremost is the addition of a DOS Shell from which all utility
- (DOS) functions and application porgrams can be envoked without a user
- ever eaching the familiar C> DOS prompt. In addition, each major menu
- or individual program selection can be passworded to provide user
- protection of individual programs or groups of programs contained in a
- menu. Also, if a user desires, they may drop from the shell back to
- the more familiar C> prommpt to execute any function they desire
- (NOTE: when exiting the shell a 7k kernel remains resident in memory
- and a user must type "exit" to return to the shell rather than
- re-envoking the batch file used to intially start the DOSSHELL
- program; if not each drop to DOS will layer a 7k kernel until all
- memory is used up...this is documented in the manual). With the shell,
- a user may display two seperate directories...move files...change
- attributes...along with many other features found on programs such as
- the Norton Commander/Utilities and the OS2 Presentation Manager.
-
- 2.) A Menu driven installation program that will aloow the user to
- setup and configure their system with a new or existing machine
- without having to reformat the hard drive. (I would personnaly
- recommend backing up the drive as a safety feature.) Since I purchased
- the 3.5 inch version from IBM (for future usage) and my PC only
- contains 5.25 inch drives, I was unable to use this in the
- installation at home...prior to actually leaving the dealer (AC3 in
- Anniston, AL.) I installed it on 2 different PS/2 systems and a clone
- 286 system for learning purposes only (later removed from all 3); I
- installed it directly to different drive configurations including
- installing it to a floppy drive configuration with no problem or loss
- of data. In addition, to facilitate installing it on my PC at home, I
- copied all files to 5.25 floppies and installed it on my PC at home
- using the manuals provided with little difficulty although I did have
- to reformat my hard drive since I could not use the installation
- program. (probably better in the long run anyway)
-
-
- 3.) Support for Hard drives beyond the 32Mb limit...IBM does state
- the if you intend to take a current disk beyond 32Mb you MUST backup
- and reformat the drive and then reload those files onto the newly
- partioned disk...this is done using FDISK which still gives the choice
- of using logical drives within a large disk or using it all as one
- Physical device.
-
- 4.) Support for extended/expanded memory with new devices drivers
- that support both LIM 4.0 and IBM's PS/2 expanded memory Adapter/A.The only problem encountered here are that these drivers only
- recognize IBM's memory boards but I own AN AST Board w/drivers that
- still work just fine under 4.0.
-
- 5.) New enhanced ANSI.SYS that allows all the old functions and also
- parameters that control/restrict extended keyboard usage and the
- ability to work with the new MODE command to maintain the number of
- lines shown on the screen when normally an application program would
- change it back to default values.
-
- 6.) Additional support for code page switching w/EGA and VGA adapters
- and code page switching with IBM printers or printers that emulae IBM.This is done with PRINTER.SYS, GRAPHICS.COM, GRAPHICS.PRO and
- DISPLAY.SYS files.
-
- 7.) Additional keyboard support for additional countries w/different
- keyboard layouts...evenn includes simplified Chinese (Personally I
- don't believe I'll be using that).
-
- 8.) Date and time can be used in "normal" format such 3:00 pm vs.
- 15:00...
-
- 9.) Detailed error messages stating what exactly happened or what
- you're about to do!
-
- 10.) Various new utils and enhancements of the old commands...all
- downwardly compatible to earlier version of DOS.
-
- These are just some of the major enhancements with this release...many
- are better documented in the user manula provided with the manuals.
-
- Please read in addition to this document, comment.txt for answers to
- questions raised in the DOS4EVAL.ARC file.
-
- Tom Eaton
-
- Brought to you by Golden Springs BBS (205)238-0012
- Opinions expressed are solely those of the author.