Hard Disk Controller Board (250-1007)     Features     Faxback Doc. # 2020

This board will enable you to extend you data storage capabilities by al-
lowing you to add an external hard disk unit, Drive C and/or Drive D, to
your Tandy 1000, in addition to the present internal floppy drives, A and B.

Your Tandy 1000 must already have had a first memory expansion option board
installed. This will not only mean that the unit will have on board the
required direct memory access controller chip but also that your core memory
will be at a minimum of 256K.

If you have any doubts as to your abilities to install this board, please do
not proceed. Instead, we suggest that you have it installed by the experi-
enced professional technicians at you local Radio Shack Computer Center. Do-
ing so assures you that the finest in computer service techniques and that
proper procedures are followed.

If, however, you do decide to install the board yourself, you will need to
determine the type of hard disk you plan to use and configure the controller
board jumper options according the charts on page 2.

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