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DOS Console Device Input and Output

   The DOS CON device is always open as handle number 0 for input as STDIN and
handle 1 for Output as STDOUT unless input or output has been redirected. DOS
always maintains handle number 2 for output to the console as STDERR.
Redirection can be detected using INT\21F\44SF\00
file: /Techref/dos/device/driver/cons.htm, 0KB, , updated: 1999/4/21 06:46, local time: 2025/2/19 17:57,
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Quick, Easy and CHEAP! RCL-1 RS232 Level Converter in a DB9 backshell
Ashley Roll has put together a really nice little unit here. Leave off the MAX232 and keep these handy for the few times you need true RS232!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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