Caldera Dr-dos Complete: The Complete Software And User Guide to the Dr-dos Operating System.

Provides a complete guide and solution for DOS based computing. Caldera's DR-DOS is a complete DOS operating system. You can use all of the available DOS development tools for this platform to create software that runs on Caldera DR-DOS, MS-DOS, IBM PC-DOS and other DR-DOS versions. Softcover. CD-ROM included.