Date : Tue, 15 Jun 1993 08:59:28 BST
From : David Alan Gilbert <gilbertd@...>
Subject: Re: Other Beebs
From: David Andrew Sainty <David.Sainty@...>
The main differences were the disc drive interfaces and the memory
management.
Both the B+ and Master had disc drive interface as standard and used
a double density capable device.
No - we came accross a B+ without disc interface - the cute
thing on the B+ was the way the PCB was kind of partially designed
for both the 8271 and 177x
The B+ had shadow ram, and a 12k block of sideways ram.
Some of the B+'s did have 128K - i.e. the extra 4 banks of sideways RAM
- the B+128K
Facility for internal co-processor (And internal modem, I've never heard
of one though!). What else... Oh, a CMOS 6502, that's quite a big
I think Beebug did a modem - what really killed it though is that
most masters have a battery pack for the CMOS RAM (to replace the ones
which used to catch fire occasionally.....)
Hmmm, there's more differences than I thought! OS is much improved, and
has neat extras like *EDIT (which is definately where it's at! Except
pity it can't edit large files off disc....).
Thats a bit of an understatement - Edit/Terminal/View/ViewStore.
Dave