4.Check to see if you have inserted the right type of diskette. The diskette type normally appears on the manufacturer’s label. Here are the guidelines:
Cl In a drive that has a storage capacity of 1.2MB, use
5 +-inch, double-sided, high-density, 96 TPI diskettes. You can also use 360KB diskettes in this drive, but if you write to a 360KB diskette in this drive, you may have trouble using the diskette in a 360KB drive later.
Cl In a drive that has a storage capacity of 1.44MB, use
3 %-inch, double-sided, high-density, 135 TPI diskettes. This type of drive can also read and write to 720KB diskettes.
0 In a drive that has a storage capacity of 360KB, use
5 %-inch, double-sided, double-density, 48 TPI diskettes. You cannot use 1.2MB diskettes in this drive.
Cl In a drive that has a storage capacity of 720KB, use 3 ‘/z-inch, double-sided, double-density, 135 TPI diskettes. You cannot use 1.44MB diskettes in this drive.
See “Types of Diskette Drives” in Chapter 3 for more information.
5.If your diskette is the right type for your drive, check to see if the diskette is write-protected. On a 5 ‘/,-inch diskette, there may be a write-protect tab over the notch on the side of the diskette or there may be no notch at all. On a
3 ‘/z-inch diskette, the write-protect switch may be set to the write-protect position or there may be no switch. You cannot store or revise data on a write-protected diskette. See Chapter 3 for information on write-protecting diskettes.
Some application programs do not function properly if the diskette is write-protected. Check the program manual.
