4 floppy disk drives on a PC?

From: Fred Cisin <cisin_at_xenosoft.com>
Date: Sun Jan 16 17:06:21 2005

On Sun, 16 Jan 2005, Vintage Computer Festival wrote:
> I know we've discussed this before but the right Google search terms are
> eluding me.
> Is it possible to get 4 floppy drives onto a PC? If so, how? If I stick
> two controllers in the PC and configure one with a different base address
> and interrupt (assuming I can find a card that allows me to do this) will
> DOS automatically recognize the second controller and extend the drive
> letters C: and D: to the drives on that card?

If it actually IS a PC (5150), . . .
The PC and XT controller has an internal, and an external connector, each
of which supports two drives. The dipswitches on the motherboard can be
set for 4 floppies, in which case A:,B:,C;,and D: will be floppies, and
hard drive, if any will be E:.
If you set the switches for TWO drives, then the hard drive, if any, will
be C:, and you'll need to use DRIVER.SYS or equivalent to access the other
two drives.

If it is actually an AT, . . .
There are SOME disk controllers that support 4 floppies. With MOST of
them, you'll need to use DRIVER.SYS.
Or, you can look for a second floppy controller that supports an alternate
address (the Compaticard is the most popular), and you will need some
minor additional software (which is often bundled with the controller).

Grumpy Ol' Fred     		cisin_at_xenosoft.com
Received on Sun Jan 16 2005 - 17:06:21 GMT

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