3.5" Drive for Apple ???

From: David Williams <dlw_at_trailingedge.com>
Date: Wed May 13 07:49:47 1998

On 13 May 98 at 10:24, Sam Ismail wrote:
> On Wed, 13 May 1998, David Williams wrote:
> > UniDisk //c : ID Byte = 0
> > Added 3.5" support
> > Increased ROM to 256K
> What ROM would this be? The Apple ][ basically had 16K of ROM not
> counting the 2K of ROM space that each peripheral card had. In the
> //c that would give it maybe another 10K for the different built in
> ports (serial, mouse, 3.5"...)

Yes, that stuck me as odd too, that was a lot for what use to be
only 16k. I'll have to go back and check the Apple //c Tech Ref at
home, it says they upped the ROM from 128k to 256k. This is the
hardback series of books Apple put out through Addison-Wesley.

> > New version of Protocol Converter called SmartPort
> What is this SmartPort Protocol Converter?

I'll have to check the exact details but from the quick glance the
Protocol Converter had something to do with handling the
mapping of ports/slots on the //c. The SmartPort was the same as the
Protocol Converter just enhanced.

If nobody else replies before I get home this evening, I'll check
what they say about the ROMs and the Protocol Converter/SmartPort and
let you know.

David Williams - Computer Packrat
Received on Wed May 13 1998 - 07:49:47 BST

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