1  –  Formatted

  Formatted Indexed READ statement format:

     READ (extu,fmt,keyspec[,keyid][,err][,iostat]) [iolist]

  Reads from a specified external unit.  Translates the data from
  character to binary format as specified by "fmt".

2  –  Unformatted

  Unformatted Indexed READ statement format:

     READ (extu,keyspec[,keyid][,err][,iostat]) [iolist]

  Reads from a specified external unit.  Does not translate the data.