5
th
step:
Changing BEDI.BAT or SIM.BAT
Supplement your file
BEDI.BAT
or
SIM.BAT
by the
following first line if it is not already present (the
last character is a zero!):
set clipper=/E:0
If your file
BEDI.BAT
or
SIM.BAT
does not contain
the command lh, enter this for
LPRINT/CPRINT
,
Chrom
LAN, PGCRES
or
PGCSIM
and
SIMRES
.
You can find more details on this in this section under
Installation of software: First check the file
BEDI.BAT
.
IMPORTANT:
If you change the files
CONFIG.SYS
or
AUTOEXEC.BAT
, it may be the case that your
computer no longer operates correctly! You
should have a boot diskette available for such
a case.
Starting from
MS-DOS
6.2, you can keep the
key pressed whilst you boot the
computer. Critical commands in the modified
files can then be bypassed.
Before you change anything, you should save
the two files under a different name, or print
them out.
If you are not quite sure:
Do not delete any lines
Do not insert any lines
Do not change any lines
Only check the file
CONFIG.SYS
as
described under 1st step
Only supplement the commands lh and
devicehigh in the files
CONFIG.SYS
and
AUTOEXEC.BAT
.
NOTE:
The parameter
I
in
EMM386.EXE
permits additional memory
areas in the UMA to be released. Please refer to your
MS-DOS
manual. Example:
I=E000-EFFF
works with almost all com-
puters. The corresponding line is:
device=c:\dos\emm386.exe i=e000-efff noems
Caution: you must first determine which memory areas are
actually unused in the UMA.
In exceptional cases, it is necessary to use the parameter RAM
instead of NOEMS. This is necessary if older programs are
used which require the expanded memory. EMM386 then
simulates this type of memory.
The various types of memory
IBM
-compatible computers have been subject to many
years of development. It is therefore difficult to keep a
track of everything. The table below is provided to help
you in this respect.
The main memory in the PC
Designation Abbreviation Size
Conventional memory 640 kB
Programs executed under DOS normally use only this memory.
They cannot recognize addresses above the 640 kB limit.
Upper memory area UMA 384 kB
Contains, inter alia, drivers for the screen, but memory areas are
almost always still vacant. They are called UMB = upper
memory blocks.
Externally resident programs, and a number of programs from
the operating software, can be loaded into this memory area
using the command
lh
.
Extended memory XMS Commences with 1 MB
Is only used by a number of programs, e.g. cache programs or
Windows.
High memory area HMA 64 kB
This is the first 64 kB of the XMS. Parts of DOS can be loaded
up into this area.
Expanded memory EMS Max. 32 MB
Requires an expanded memory board and a driver which is
provided with this board. Also functions with XTs because
accessing is carried out using page frames of 64 kB which are
inserted into the upper memory area (UMA).
This is slow, however, and should only be used nowadays if an
old(!) program can only use the EMS. This is hardly the case any
more.
OPTIMIZATION OF HARD DISK
IN THE CONTROL UNIT
New files are constantly being stored on the hard disk
of your control unit: result reports, chromatogram data
and temporary files.
MS-DOS
Does not write these files
into one block on the disk, it divides them into respec-
tively available areas. This division increases as the
operating period increases. The access to data may then
become so slow that communication with the chroma-
tograph no longer functions correctly.
It is therefore necessary to defragment the hard disk
every now and then on every
IBM
-compatible PC. It
was previously necessary to use separate programs, e.g.
PCTOOLS
. From version 6.2 onwards,
MS-DOS
con-
tains the programs
SCANDISK
and
DEFRAG
. Following
the
DOS
prompt, type
c:>
scandisk c:
c:>
defrag c: /f
You can find more details in your
MS-DOS
manual.
F8
RETURN
RETURN
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auf de
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to-
gramm
Installation of software
2SWINSTA.CHP, Stand Dezember 22, 1999
13
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