Types of Diskette Drives

You computer has at least one 1.2MB diskette drive. With this drive, use 5¼-inch, double-sided, high-density, 96 TPI, 1.2MB diskettes. These diskettes contain 80 tracks per side, 15 sectors per track, and hold up to 1.2MB of information, which is approximately 500 pages of text. You can also format these diskettes for 360KB — see your MS-DOS Reference Manual for more information.

In addition, you may have a diskette drive of a different type. The following list describes the types of optional diskette drives you can use in your computer and which diskettes you should use with them:

360KB drive — With this drive, use 5¼-inch, double- sided, doubledensity, 48 TPI (tracks per inch), 360KB diskettes. (You can also use single-sided, 160KB or 180KB diskettes). These diskettes contain 40 tracks per side, 8 or 9 sectors per track, and hold up to 360KB of information, which is approximately 150 pages of text. (With 8 sectors per track, a diskette holds up to 360KB.)

720KB drive — With this drive, use 3½-inch, double- sided, double-density, 135 TPI, 720KB diskettes. These diskettes contain 80 tracks per side, 9 sectors per track, and hold up to 720KB of information - approximately 300 pages of text.

1.44MB drive — With this drive, use 3½-inch, double- sided, high-density, 135 TPI, 1.44MB diskettes. These diskettes contain 80 tracks, per side, 18 sectors per track, and hold up to 1.44MB of information, which is approximately 600 pages of text.

If your computer has more than one type of these drives or if you use diskettes from other computers, you need to be aware of certain incompatibilities between the drives and the diskettes they use.

3-8 Using Your Computer