Epson Apex User Manual page 60

Before you end a session with MS-DOS, make sure
you are at the A) prompt. Then it is safe to remove
your diskettes, turn off all peripherals, and finally turn
off the computer.
When you're in the middle of a program, you can stop
a program's operation and return to the MS-DOS
command prompt by pressing
any data not stored on diskette at the time is lost.
Many application programs establish their own
keys (instead of
using those programs.
4 - 4
Ctrl C),
which you must know when
Using MS-DOS with Your Apex
Ctrl
and C. However,
abort