Epson Equity 386/33 PLUS, Руководство пользователя

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Your computer uses the read/write heads in a disk drive to
store and retrieve data on a disk. To write to a disk, the
computer spins it in the drive to position the disk so that the
area where the data is to be written is under the read/write
head. A diskette has an exposed area where the read/write
head can access it.
Because data is stored magnetically, you can retrieve it, record
over it, and erase it just as you play, record, and erase music on
a cassette tape.
Types of Diskette Drives
The following list describes the four types of diskette drives
you can use in your computer and which diskettes to use with
them:
1.44MB drive-Use 3½-inch, double-sided, highdensity,
135 TPI (tracks per inch), 1.44MB diskettes. These diskettes
contain 80 tracks per side, 18 sectors per track, and hold up
to 1.44MB of information (approximately 600 pages of text).
Note
MB stands for megabyte, which equals 1024KB (or
1,048,576 bytes). KB stands for kilobyte, which equals
1024 bytes. Each byte represents a single character, such
as A, $, or 3.
1.2MB 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 (approximately 500 pages of text).
Using Your Computer 1-9