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–5¼-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 3½-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 3½-inch key disk in drive A while you run the program.

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

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

❏Run the AFDD program to reassign the drive. See “Using the AFDD Program,” below, for instructions.

Your assignments remain in effect until you press the RESET button or turn off the computer, or until you reassign the drives to their original assignments. The reassignment remains in effect if you reset the computer from your hard disk by entering the Ctrl Alt Del command.

Enhancing System Operations

4-7