Tandy T100 info

[Allison]

>
>Subject: Re: Tandy T100 info
>   From: John Hogerhuis <jhoger at gmail.com>
>   Date: Mon, 16 May 2005 17:58:44 -0700
>     To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
>
>On 5/16/05, Allison <ajp166 at bellatlantic.net> wrote:
>> I'll have to look more at all this.  However, step one is to
>> get the M100 I have up to 32k ram.  Then I'll look at how secondary
>> rom socket space is used. I'd like a configuration that also has
>> ram at 0000h and maybe a OS in it.  I've considered getting
>
>That has been done... I believe what you do is put a RAM in the Option
>ROM socket and bring out the necessary signals (/WE I think). Also the
>NEC 8201A and NEC 8300 are able to switch to all RAM mode with a short
>program.

I'd be surprized if it weren't already done.  Way too easy.  The switch 
for M100 is also trivial piece of code.  The real trick is to keep
the rom socket available. So the magic is to make the all ram option
a third one and software selectable.

>There was at some point in time a device called a PIC Disk that
>allowed you to run CP/M on the Model 100. It connected to the bus
>expansion port underneath the M100.

Tandy also had one that added a vidio and disk to the M100 that 
used the bus connector. I have part of the manual for it.



Allison