Re: External drives

[Wayne Stewart <waynes@telus.dotnet>]

Michael Pender wrote:
> A few questions:
>
> Can a person just plug any mixture of 5.25" and 3.5" floppy drives into an
> Apple IIc or IIgs?

Sort of. You can use 3.5" UniDisks, up to two regular 3.5" drives and up
to two 5.25" drives. The 3.5" unidisks go first, with the platinum 3.5"
drives next and the 5.25" drives on last. You can use a DuoDisk instead
of the two separate 5.25" drives but some DuoDisks need a modification
to be compatible with the IIgs.

> Does the IIc have to be a certain ROM version to support the unidisk?

Yes it does.  Go into Basic and type "PRINT PEEK (64447)" and press
return.  If it says 255, you need a ROM upgrade to us a 3.5" UniDisk

> Also, are 5.25" drives and 3.5" drives still available for sale somewhere?

Used ones at least.

> How about the RocketChip accelerator?

The RocketChip is long gone. Zip Technologies sued them over patent
rights and won. As it was their only product they imediately went out
of bussiness. Since Applied Engineering was leasing the technology for
their TransWarp II from them, they imediately stopped production of this
card. If you want one you'll have to check eBay

Wayne