Hard Disk Controller (250-4060) Features Faxback Doc. # 5289 The Hard Disk Controller in an internal option board for the Tandy 3000 computers that supports as many as two hard disk drives and as many as two floppy disk drives. Before you begin the Hard Disk Controller board installation, you must complete the installation for any internal disk drives you are adding to your computer. Refer to the instructions in your hard disk's installation manual. For more technical information on the Hard Disk Controller Board, refer to the Technical Reference Manual for you computer (25-4104 or 25-4105). Refer to your operating system and application manuals for specific instructions on storing and accessing your programs on hard disk. (DTC/jlc-03/23/94)