C Tutor... C Tutorial....: Progran to formatting disks

#include 
#include 
#include "snpdskio.h"

int CDECL absdisk(unsigned char  function,
                   unsigned short drive,             

/* 0 = A:, etc.   */
                   size_t         number_of_sectors,
                   size_t         starting_sector,
                   void *         sector_buffer);

int AbsDiskRead(unsigned short drive,
                size_t         num_of_sectors,
                size_t         sector,
                void          *ptr)
{
      return absdisk(0x25, drive, num_of_sectors, (unsigned)sector, ptr);
}

int AbsDiskWrite(unsigned short drive,
                size_t         num_of_sectors,
                size_t         sector,
                void *ptr)
{
      return absdisk(0x26, drive, num_of_sectors, (unsigned)sector, ptr);
}

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History Of C..

In the beginning was Charles Babbage and his Analytical Engine, a machine
he built in 1822 that could be programmed to carry out different computations.
Move forward more than 100 years, where the U.S. government in
1942 used concepts from Babbage’s engine to create the ENIAC, the first
modern computer.
Meanwhile, over at the AT&T Bell Labs, in 1972 Dennis Ritchie was working
with two languages: B (for Bell) and BCPL (Basic Combined Programming
Language). Inspired by Pascal, Mr. Ritchie developed the C programming
language.