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DOS Device Drivers

   DOS Devices may be accessed by Int 21 Function calls which support file I/O
by specifying the name of a device rather than a file or by useing the Handle
Read and Write functions with the STDIN, STDOUT, and STDERR devices which are
set to handles 0, 1, and 2 respectfully when dos loads any program. Some Device
drivers also add new Interrupt Functions to the DOS or BIOS.

   Console Input and Output
   Clock device
   Physical Communication Drivers
   Logical Communication Device
   Physical Printer
   Logical Printer



 










See also:






BIOS Device Drivers
Handle Close Int\21F\3E
Handle Open Int\21f\3D
Handle Read Int\21f\3F
Handle Write Int\21f\40
IOCTL
file: /Techref/DOS/Devices.htm, 1KB, , updated: 1999/4/26 14:46, local time: 2012/5/25 03:28,
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Robotics nuts!

Check out http://users.frii.com/dlc/robotics/projects/botproj.htm from Dennis Clark. This guy ROCKS! He has made (and sells but also releases code, docs, etc...) for a number of cool little robotic modules including whiskers, IR proximity detect and remote control, Sonar proximity detect, PWM, Servo, compass. Most of these use the little PIC 12C508 controller which costs basically nothing and is soooo tiny.
The 4 servos, 2400 baud serial servo controller is a wonder of magic and he sells the programmed chip for $8. Wow!

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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