You could name the batch file SAMP.BAT. Whenever you need to run the SAMPLE program, insert the program diskette into drive A. Then type SAMP and press Enter.

The computer changes the processor speed to automatic and starts the SAMPLE program. When you access the program on the diskette, the speed changes to low and then returns to high when you are finished.

See your MS-DOS Reference Manual for instructions on creating and using batch files.

Reassigning the Diskette Drives

If your system has two diskette drives, they are connected inside your computer so that the top drive is A and the bottom drive is B. Because drive A is the “boot” drive, whenever you want to load the operating system or a bootable program from a diskette, you must insert the diskette into drive A.

If both of your drives are the same type-5 ‘/+inch, 1.2MB capacity, for example-you never need to reassign the drives. If your two drives are different types, however, you may need to change the drive letter assignments so you can boot the computer from drive B. For example, you may have a 3 ‘/z-inch program disk which you need to use to boot the computer. Or you may have an application program that requires you to leave the 3 ‘/z-inch key disk in drive A while you run the program.

In these instances, you can reverse the drive assignments to make the top drive B and the bottom drive A. There are two ways to do this:

Cl Insert the diskette you want to boot from into the drive and turn on the computer. The drive automatically becomes drive A.

Enhancing System Operations 4-7