High Quality Content by WIKIPEDIA articles! Lattice C (according to its author, Lattice, Incorporated) was the first C compiler for MS-DOS on the IBM PC, in 1982. It was ported to many other platforms, such as mainframes (MVS), minicomputers (VMS), workstations (UNIX), OS/2, the Commodore Amiga, Atari ST and the Sinclair QL.