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1988-08-25
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DOCID: Q404543
TITLE: 08/16/88 DOES THE PCLP 1.3 OFFER LIM SUPPORT OFFERED BY
DOS 4.0 ?
$SOURCE: ITEM 3KXSC FROM EQUAL SYSTEM HONSDPD 3
SOURCE MATERIAL DATED: AUG88
The announcement referenced LIM support for several of its
features/modules, however how about the LAN program and the
LAN support programs themselves. Can we take advantage of DOS
4.0's LIM and free some useable memory/ Obviously not all
application programs will support the LIM standard now, I
would expect that a new product announced in conjunction with a new
operating system would support its available features to take
advantage and complement each other.
---------- ---------- ---------- --------- ---------- ----------
A: The PC LAN Program does not support LIM. Extended memory may be only
used for a disk cache (CAC parameter at the Server), or for a VDISK.
---------- ---------- ---------- --------- ---------- ----------
DOCID: Q403991
TITLE: 08/11/88 AFTER REVIEWING THE NEW DOS 4.00 AND PCLP 1.3
ANNOUNCE MENTS, IT APPEARS THAT PCLP DOESN'T USE
EMS 4.0
$SOURCE: ITEM 5KXRN FROM EQUAL SYSTEM HONSDPD 3
SOURCE MATERIAL DATED: AUG88
Does IBM understand the requirement for applications to use the EMS
4.0 area in order to reduce the amount of storage use below the 640
line? We certainly understand that some must remain there, but it
looks like no attempt was made at all to help reduce the size of
PCLP below the line.
---------- ---------- ---------- --------- ---------- ----------
A: The only uses which the PC LAN Program and DOS can make of extended
memory are for the CAChe at the Server and for a VDISK. While there are
several PCLP parameters which can be used to reduce memory utilization,
most reductions will also tend to decrease performance. If you need
information on these, please reopen this item. The Redirector module,
which is used to access the Server contains 20-24K of code, but may
require up to 64K of memory - depending on the parameter options you
choose.
---------- ---------- ---------- --------- ---------- ----------
DOCID: Q403986
TITLE: 08/11/88 IS AN UPGRADE TO DOS 4.0 ADVISABLE ON A TOKEN
RING NETWORK USING PC LAN PROGRAM VERSION 1.20?
$SOURCE: ITEM 4KXRW FROM EQUAL SYSTEM HONSDPD 3
SOURCE MATERIAL DATED: AUG88
Is an upgrade to DOS 4.0 advisable on a Token Ring Network running
PC LAN Program Version 1.20, or are there memory constraints? If
it can be used on a token-ring, then do all users also need to have
DOS 4.0 on their PCs?
---------- ---------- ---------- --------- ---------- ----------
A: No, because LAN v1.2 will not start and will return an
"Incorrect DOS version" message. LAN v1.3, however, does support
both DOS 4.0 and DOS 3.3.
---------- ---------- ---------- --------- ---------- ----------
DOCID: Q402317
TITLE: 08/04/88 CURRENT 3270 WORKSTATION PROGRAM 1.0 AND 1.1X
ARE NOT SUPPORTED WITH DOS 4.0.
$SOURCE: ITEM 603MP FROM EQUAL SYSTEM HONCDPD 3
SOURCE MATERIAL DATED: AUG88
The 3270 Workstation Program is currently not supported running under
DOS 4.0. 3270 Workstation Program version 1.12, a forthcoming
maintenance release to 3270 Workstation Program version 1.1, will
be the only version supported with DOS 4.0.
Workstation Program version 1.12 will be available by October 1988.
:
Earlier 3270 Workstation Program versions may work with DOS 4.0, but any
problems encountered would have to be duplicated with DOS 3.3 for support
to be provided by ASKINFO, EQUAL, or defect support from IBM Central
Service (NSD).
---------- ---------- ---------- --------- ---------- ----------
DOCID: Q401952
TITLE: 08/11/88 WILL DOS 4.0 ALLOW ECF TO SUPPORT VIRTUAL DISKS
GREATER THAN 32MB ON AN MVS HOST?
$SOURCE: ITEM VJBB0 FROM EQUAL SYSTEM HONIFLDI 3
SOURCE MATERIAL DATED: AUG88
Q: *-* The Complete Question is contained in the Item Abstract *-*
---------- ---------- ---------- --------- ---------- ----------
A: There is a problem with running ECF on DOS 4.0. You may want to
call the 1-800 number for service and get your name on the interested
party list for this problem.
---------- ---------- ---------- --------- ---------- ----------
DOCID: Q401014
TITLE: 07/19/88 SHOULD I ORDER THE NEW DOS 4.0 FOR USE WITH
NETVIEW/PC?
$SOURCE: ITEM 32963 FROM EQUAL SYSTEM WSCICNT 3
SOURCE MATERIAL DATED: JUL88
Q:
I am ordering NetView/PC V1.1. Should I order the new DOS 4.0 for
use with NetView/PC?
---------- ---------- ---------- --------- ---------- ----------
A:
No, you should not order DOS 4.0 for use with NetView/PC V1.1. DOS 4.0
is larger than DOS 3.3 by 10K or more. NetView/PC does not have any
memory to spare, so DOS 3.3 is still required for use with NetView/PC.
DOS 3.3 is still being marketed by IBM.
---------- ---------- ---------- --------- ---------- ----------
DOCID: Q401007
TITLE: 07/19/88 WHAT ARE THE NEW MAJOR CHANGES AND ENHANCEMENTS
TO DOS 4.0?
$SOURCE: ITEM 224MD FROM EQUAL SYSTEM HONCDPD 3
SOURCE MATERIAL DATED: JUL88
DOS 4.0 Questions and Answers
General
-------
1. How does DOS 4.00 differ from 3.30?
* Over 30 new and enhanced commands and utilities
provide DOS 4.00 with significant improvements over
DOS 3.30 while remaining upwardly compatible. It
supports the same PC-PS/2 hardware systems except
for PCjr. DOS 4.00 is the first release of DOS
which carries a program warranty with associated
defect service for one year from today's
announcement.
Other Highlights of the DOS 4.00 enhancements over
3.30 include:
- Support of large hardfiles greater than 32
megabytes in a non-partitioned manner that
allows a single file to be as large as the media
provided. 3.30 requires partitioning of large
disks into logical drives of 32 megabytes or
less.
- A new DOS Shell provides group, file, and
directory services that are user-friendly
alternatives to the command line. 3.30 does not
provide this menu-driven file organizer and
application selector which introduces the user
to an OS/2 like presentation manager.
- DOS 4.00 supports exploitation of memory,
supplied by IBM Expanded Memory Cards, Options,
or emulation (See today's announcement for
details), above 640KB by applications written to
the Lotus/Intel/Microsoft 4.0 Expanded Memory
Specification (EMS). 3.30 requires the function
of the IBM Workstation Program to support the
IBM Expanded Memory Cards.
- The DOS installation procedure (SELECT) has been
enhanced with full screen interactive menus to
aid the user in configuring the richer function
set provided by DOS 4.00 versus 3.30.
- Video/graphics support has been enhanced to
provide printing of graphics screens, additional
video mode settings, and display of more than 25
lines of text not provided by DOS 3.30.
- For world wide users, DOS 4.00 has been
translated into 11 languages, and three English
versions (U.S., U.K., and Universal) are
available. DOS 4.00 has been enabled to allow
separately available translation supplements for
Asia Pacific languages, and provides
right-to-left support to separately available
Arabic and Hebrew supplements that allow
generation of files in these languages. New
keyboards for U.K., France, and Italy are now
supported.
2. Is there a list of OEM application programs that have
been tested for compatibility with DOS4.0?
* No list of compatible OEM programs has been
compiled. You must check directly with the
manufacturer.
3. What are the implications of programs performing DOS
version checks?
* Some applications require or check the version of
DOS that it is running under and some require a
specific verion of DOS to run. Some applications
are checking for versions of DOS > DOS3.3 but <
DOS4.0 and since there are no versions of DOS at
this level, the applications may not work correctly.
4. Is DOS 4.00 offered on both 3.5 inch and 5.25 inch
media?
* Yes, but in separate packages. DOS 4.00 3.5"
version contains two (2) diskettes to support PS/2
purchases. DOS 4.00 5.25" version contains five (5)
diskettes for prior owners of DOS 1.0 through DOS
3.30 or for new purchasers of 5.25" systems.
Memory Requirements
-------------------
5. How much memory does DOS 4.00 require?
* DOS 4.00 base requires approximately 62KB of memory
on a PC AT, and this will vary based on other
configurations. Using the DOS Shell Extension
requires a minimum of 256KB of memory.
6. Do application programs still have 640KB under DOS4.0?
* Programs that are written to take advantage of LIM
4.0, or expanded memory, will have greater than
640KB available. Otherwise, application programs
still have the full 640KB available.
7. Has the resident part of DOS 4.0 increased?
* DOS 4.0 resident storage size has increased due to
performance enhancements. Programs which were
executable while using DOS 3.3 may not fit into DOS
4.0 640KB program environment. The additional
resident growth is due to the following performance
improvements:
- Greater than 32MB hardfile support.
- 10,000 buffers can be specified in the
Config.Sys file.
- Fastopen keeps track of the last file opened and
searches the directory table for a file before
searching the hard disk.
- Look-Ahead-Buffers allow multiple sector
processing when sequential data is read or
written to a disk.
- System buffers may be placed in Extended
Memory.
- Share.Exe automatically installed on systems
with hard disks greater than 32MB in size.
In comparing the resident size of DOS 3.3 to that of
DOS 4.0, the following chart will some system
configuration examples:
SYSTEM RESIDENT SIZE
CONFIGURATION DOS 3.3 DOS 4.0
-----------------------------------------------------
PCAT, Color monitor 52224 bytes 61456bytes
1 1.2 MB diskette
20 MB hardfile
512 KB memory
PS/2 model 30 54704 bytes 64112bytes
Color display
1 720 KB diskette
20 MB hardfile
640 KB memory
Large Disk Support
------------------
8. What is the method for allocating partitions greater
than 32MB in DOS 4.0?
* In DOS 4.0, the 16-bit FAT is still used, but there
is an increase in allocation size of sectors per
cluster. Using files from DOS 3.3 on DOS 4.0 is
possible, however files created on large disks with
DOS 4.0 cannot be used on DOS 3.3.
9. What happens when using the DOS 3.3 unformatted
partitions or logical drives with DOS 4.0?
* A change was made to DOS 4.0 to protect the user
from performing I/O to an unformatted partition or
logical drive. If the user is running DOS 4.0 and
tries to access the partition, a critical error with
the "Abort, Retry, or Fail" message will be
received. The problem arises when a user has been
performing I/O to an unformatted partition under
DOS 3.3 and then upgrades his system to DOS 4.0.
The user will either think that DOS 4.0 has an
error because he/she was able to use the hardfile
under 3.3, or that the hardfile has "gone bad".
Also, when looking at an unformatted logical drive
under DOS 4.0 FDISK, the system type for the
unformatted logical drive will be be listed as
"UNKNOWN".
To resolve this problem, the user should BACKUP the
unformatted drive while running DOS 3.3. Next they
should format the drive using DOS 3.3 and then
RESTORE the partition from the previously created
BACKUP. Now, when DOS 4.0 is installed on the
same system, the user will be able to access all the
information on that drive without receiving a
critical error.
DOS Shell
---------
10. What is the DOS Shell?
* The DOS Shell provides an alternative to the command
line prompt A> user interface. It provides the DOS
command services via interactive displays and
windows within the displays to support day to day
tasks. It allows start-up of applications, access
and processing of files, and hardcopy output of
processed data. Help information is provided
relevant to the task at hand. These actions are
accomplished by straight forward selections from
easy to use menus using either a mouse or the
keyboard. The Shell will run in either text or
graphics mode and is similar to the OS/2
Presentation Manager. Installation of the DOS Shell
is optional.
11. Is the DOS Shell based on Microsoft Windows 2.03?
* No. It is based on several years of research into
user-friendly command processing to provide a Common
User Access (CUA) method of organizing files and
display of information for optional selection. The
IBM Fixed Disk Organizer program provided a base for
this enhancement.
12. What screen modes are supported by the DOS 4.0 Shell?
* The screen modes supported by the SHell are: 3, 7,
10, 11, 12
EMS Support
-----------
13. What is EMS?
* DOS 4.00 now provides operating system support
for those developers who write applications that
require additional memory above the DOS 640KB
limitation in order to run or provide higher
performance. The applications must be written
to the programming interfaces required by the
public domain Lotus/Intel/Microsoft Expanded
Memory Specification 4.0, which is known as LIM
4.0 EMS. Memory above 640KB is then addressed
through a combination of a DOS 4.00 EMS device
driver and IBM memory cards that contain the
additional memory. See today's announcement for
details on EMS memory options. 80386 processors
(PS/2 Models 70 & 80) emulate these memory cards
using their virtual paging capabilities.
In addition to supporting these EMS dependent
applications, DOS 4.00 can utilize these
cards/emulation to provide memory relief and
associated performance improvement for specific
DOS functions.
---------- ---------- ---------- --------- ---------- ----------
DOCID: Q296786
TITLE: 08/16/88 TCSEE 88G, DOS 4.0 TECHNICAL UPDATE, 9/1 1 EDT
TCSEE 88F, IBM PC 3270 WORKSTATION PROGRAM, 8/24
1 EDT
$SOURCE: ITEM 787MG FROM EQUAL SYSTEM HONCDPD 3
SOURCE MATERIAL DATED: AUG88
The Technical Coordinator Program has scheduled to TCSEE events:
1. IBM PC 3270 Workstation Program Update, 8/24
2. DOS 4.0 Technical Update, 9/1
************************************************************************
***************TCSEE 88F, August 24, 1988 - 1 PM EDT********************
**********IBM PC 3270 Workstation Program Technical Update**************
This broadcast will focus on the IBM PC 3270 Workstation Program. The
topic includes a product overview followed by a more detailed
discussion of various technical topics, including:
o IBM PC 3270 Workstation Program customization: Customization of
host communication sessions (both coax and Token-Ring), and PC
sessions.
o Use of the IBM Expanded Memory Adapter (XMA) with the IBM PC 3270
Workstation Program for WSP memory, PC sessions, and Expanded
Memory Specification (EMS) usage.
o Use of the 3270 Workstation Program with the IBM PC Local Area
Network Program.
o Use of the Advanced Display Option for display of 3270 Model 3, 4,
and 5 screen sizes.
To best understand this material, participants should have a working
knowledge of IBM 3270 network communications and workstations
environment, to include IBM PC-PS/2 products, PC DOS, and a basic
familiarity with the IBM PC 3270 Workstation Program.
Participants should be familiar with 3270 communications and workstations
environment, IBM PC-PS/2 environment and PC DOS.
*************************************************************************
**************** TCSEE 88G, September 1, 1988, 1 PM EDT *****************
********************* DOS 4.0 Technical Update **************************
The IBM Disk Operating System (DOS) Version 4.00 is the latest release of
the single tasking operating system for the IBM Personal System/2 and
IBM Personal Computer families.
TCSEE 88G will review the many enhancements provided by this release in
technical detail, including additional support for IBM hardware, expanded
memory support, and several new and enhanced DOS commands. There will be
particular focus on installation procedures and the new user shell.
PC DOS 4.0 provides the user with a new full-screen user interface
installation program and user shell. The installation program guides the
user through the setup of his system, including the AUTOEXEC.BAT and
CONFIG.SYS files.
:p.The user shell is a menu driven user interface which conforms to
many of the Systems Application Architecture (SAA) and Common User
Access (CUA) specifications. The DOS shell may be tailored to
individual's needs, and provides access to a command prompt and an easy
to use file system. The user shell may be run in graphics or in
text mode and may be run with the keyboard, a mouse, or both.
This material has been developed and will be presented by IBM
development and technical support personnel. The seminar
is intended to update existing installation skills.
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