Tandy 1000 MS-DOS Reference Manual page 315

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PROBLEMS AND ERROR MESSAGES
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It is important that you understand error messages. They inform
you of difficulties the computer is having in accomplishing the
task it has been given. Knowing what the problem is will assist
you in solving it most efficiently.
MS-DOS Error Messages
The two sources of error messages are MS-DOS and an applica-
tion program. If you receive an error message other than a sys-
tem error, it comes from an application program. Refer to that
program's documentation for help.
System errors consist of two types: those that occur while MS-
DOS is writing to a disk or to another system device (such as a
printer) and command errors. As well, MS-DOS special pro-
grams (such as LINK, DEBUG, or EDLIN) have their own error
structure. The errors that can be displayed by MS-DOS or its
functions are described in the following order:
• Device Error Messages
• Command Error Messages
• EDLIN Error Messages
• Linker Error Messages
• DEBUG Error Messages
Device Error Messages
Device errors refer to problems with your computer and its
peripherals, such as disk drives, modems and printers. If a
Device Error occurs at any time during a command or program,
MS-DOS returns an error message in the following format:
type error action device name
Abort, Ignore, Retry:
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