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When you install MS-DOS, it creates an AUTOEXEC.BAT file
for you, which you can modify or replace as described above.
Be sure to name the file AUTOEXEC.BAT and store it in the
root directory of the hard disk or diskette from which you load
MS-DOS.
See your MS-DOS manuals for more information about creating
and using batch files.
Changing the Processor Speed
Your computer’s processor can operate at two speeds: fast
(33 MHz) and slow (simulated 11 MHz). At fast speed, the
computer can access memory faster. This is the default setting
unless you change the speed to slow with SETUP or the
ESPEED program or set it to change automatically.
Note
When your computer is operating at fast speed, the
TURBO
light on the front panel is on. It is off when the computer is
operating at slow speed.
You should use fast speed for almost everything you do
because your programs will work faster. However, certain
application programs have specific timing requirements and
can run only at the slower speed. See your software manual to
determine if this is the case.
Some copy-protected programs require the computer to run at
slow speed while accessing the program on a diskette. These
programs also usually require you to leave a
key
disk-the one
that contains the copy protection-in the drive. If you use a
copy-protected program often, you may want to set your
processor speed to change automatically to slow speed when
accessing the diskette and return to fast when it is finished.
2-2
Enhancing System Operations