Command: getc
  
Syntax: 
  i = getc(fn)
  
Description: 
  Get the next character (byte) from file fn. The character will
  have a value from 0 to 255. -1 is returned at end of file.
  
Comments: 
  File input using getc is buffered, i.e. getc does not actually 
  go out to the disk for each character. Instead, a large block of 
  characters will be read in at one time and returned to you one 
  by one from a memory buffer.
  
See Also: 
  gets, get_key, wait_key, open
  
