70 MB Internal Hard Drive (250-4067) Features Faxback Doc. # 5076 The 70-megabyte hard disk drive is an internal fixed-disk storage device for all computers in the Tandy 3000/4000 series. This hard disk drive significantly increases the storage capacity of your computer, and yet it requires no more space than any other half-height drive. All computers in the Tandy 3000/4000 series support up to two hard disk drives. However, to support a hard disk drive, your system must include a hard disk controller board: either Cat No. 250-4060 (for both hard and floppy control) or Cat. No. 250-4058 (for hard disk control only). You should install the 70-megabyte hard disk drive and any other internal disk drive(s) before you install the hard disk controller board. Note: If your computer contains an early version of the 250-4060 controller board (Serial No. WD1002-WA2), it will not allow you to use all the storage space on your 70-megabyte drive. Replace the old 250-4060 for a new 250-4060 (Serial No. 1002WA3). (smm 07/29/93)