Original sentence: And it supported a range of file organizations with access methods to help in using them:.DOS/360 had a set of utility programs, an Assembler, and compilers for FORTRAN, COBOL and eventually PL/I
Edited sentence: And it supported a useful range of file organizations with access methods to help in using them:.DOS/360 had a good set of utility programs, an Assembler, and compilers for FORTRAN, COBOL and eventually PL/I