Date   : Sun, 12 Jul 2009 20:08:12 +0100
From   : bbcmailinglist@... (Ian Wolstenholme)
Subject: Atom Questions

I've been playing with my Atoms.  They all work but one of them has a
faulty 6502 and one of them I can't tune in properly to the TV.

Just a few questions have sprung to mind:

1. To upgrade them all to 12K RAM, I need 10 x 2114 RAM chips.  Has
anyone got any?

2. Has anyone got a spare 1MHz 6502 for sale?

3. What would happen if I put in a 2MHz (or more) 6502?

4. Why does the official Acorn Atom PSU jack only fit 2 of my 4 Atoms!!??

5. What is the correct connector for the Acorn expansion bus?  Is it a
male or female connector?  I also have a small board marked "SMART-ARMS
6R Version ATOM ROM Issue 9e Feb 1983 by SYSTEMS CONTROL" which
has a male expansion bus connector, the same as the only one of my
Atoms with this upgrade, so I can't plug it in.

6. How can I find out what optional ROMs are connected to the Atom
without taking them out and reading them in an EPROM programmer? Is
there an equivalent of *ROMS or *HELP?

7. Can I get colour graphics without any extra hardware?  The manual
seems to suggest I can, with a special plotting routine or using the COLOUR
command on the Floating Point ROM.  One of my Atoms has the FP ROM but
it's the one I can't tune in properly, so it's possible that it's doing colour 
but I can't see it.  I thought there was a separate colour board though.

Hope somebody can help.

Best wishes,



Ian