About The Drives; Using The Hard Disk; Backing Up Your Hard Disk - Tandy 1500HD User Manual

7500
HD Laptop Computer
board. For example, do not type the letter
0
for the
number 0, or the letter I for the number 1.
ABOUT THE DRIVES
The Tandy 1500 HD has an internal floppy diskette
drive and a hard disk drive. You can start the oper-
ating system and most application programs either
from the hard disk or the diskette.
The hard disk drive is called Drive C, and can store
20 million bytes (20 MB) of data. The hard disk can
store much more information than a floppy disk,
and it takes less time to find information on a hard
disk than on a floppy disk.
When you store programs (such as MS-DOS) and
other information on a hard disk, we recommend
that you keep backup copies of the programs and
data on a floppy disk. This prevents the loss of all
your programs and data even if the hard disk is ac-
cidentally damaged.
The diskette drive is called Drive A, and uses 3
1 4 -
inch floppy diskettes. You can use either high-den-
sity diskettes that store 1.44 MB of data (Cat. No.
26-423),
or
double-density diskettes that store 720
KB of data (Cat. No. 26-417).
USING THE HARD DISK
You seldom need to use your floppy disk drive ex-
cept for copying files and making backups of hard
disk files. You also can use this disk drive to copy
your application programs to the hard disk.
BACKING UP YOUR HARD DISK
Making backups of hard disk files is extremely im-
portant. Because the storage capacity of a hard
disk is so much greater,
loss
of data can result in
the loss of thousands of hours of work.
You can use the BACKUP command to make cop-
ies of one or more directories or of the entire hard
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