Epson LT-286e 用户手册

下载
页码 161
TPI
Tracks Per Inch. A measure of the density with which data can
be stored on a diskette.
Track
A circular region on a diskette, which is divided into sectors.
Each side of a 
1.44MB 
or 720KB diskette has 80 concentric
tracks. Each side of a 360KB 5 
 diskette has 40. On a
hard disk, tracks are called cylinders.
Utility program
A type of application program designed to perform
housekeeping chores, such as copying files, creating directories,
and so on. HELP and MENU are examples of utility programs.
Volume label
A name (up to eleven characters in length) you can assign to a
diskette or hard disk. To add or change a volume label for a
diskette or hard disk that has already been formatted, use the
MS-DOS LABEL command.
Wildcard character
A character that represents an unknown character or group of
characters. MS-DOS recognizes two wildcard characters: * and
?. The asterisk represents a group of characters, and the question
mark represents a single character.
Write
To record data on a disk.
Write-protect
To prevent a diskette from being overwritten. When a diskette
is write-protected, you cannot erase, change, or record over its
contents.
20
Glossary