In 1983, IBM released PC DOS version 2.0.
Completely rewritten from the ground up, DOS 2.0 added subdirectories and hard disk support for the new IBM XT.
Learn more at http://en.wikipedia.org/wiki/IBM_PC_DOS#PC_DOS_2.x
Completely rewritten from the ground up, DOS 2.0 added subdirectories and hard disk support for the new IBM XT.
Learn more at http://en.wikipedia.org/wiki/IBM_PC_DOS#PC_DOS_2.x