1  –  Formatted

  Formatted direct READ statement format:

     READ (extu,fmt,rec[,iostat][,err]) [iolist]

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

2  –  Unformatted

  Unformatted direct READ statement format:

     READ (extu,rec[,iostat][,err]) [iolist]

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