> > > Well, it depends on what you want to learn. There are some things (OOP,
> > > for example) that would be difficult to teach on a Beeb or Apple ][.
> > > There are some things (hardware operaion) that are very difficult to
> > > teach with a modern PC.
> > My keyword - A 'simple' machine like an A2 or an IBM/XT is exaxtly
> > the very best environment to teach OOP. After all, OOP is NOT about
> OK, it was a bad example. There must be something that's better taught on
> a modern PC. Although off the top of my head I can't think what it is
> ;-). You can certainly learn all the fundamentals using old machines.
Well, maybe WinXX management - but what the heck would anybody
like to learn about ?
> > Acron System 1 ? Another beast from the island I'm not aware of ?
> Many (clueless) people seem to think that Acorn's first machine was the
> BBC micro. Slightly less clueless ones think it was the Atom (another
> 6502-based home computer). But before both of those machines, they made a
> series of machines based on Eurocard modules in 19" cardframes called the
> 'Systems'. It is not exactly clear to me what all the later Systems were,
> but I can give some ideas.
Well, I did know that they build other, but I had no clear info - thanks a lot.
> The System 1 was 2 Eurocards. One of them contained a 6502, 8154 RAM/IO
> (with an optional second one), 1K of RAM, and a monitor ROM. The other
> contained a hex keypad, 7 segment display, and a cassette interface.
> Together they formed a minimal 6502 development system.
WANT!
> The System 2 was in a rack. It used the same boards as the System 1,
> although the keyboard/display were left off (the second board was just
> the cassette interface). There was another card which contained a 40
> column text-only VDU and one with more ROM/RAM on it. There was also a
> full QWERTY keyboard which (IIRC) plugged into one of the 8154 ports on
> the CPU board.
8154 ? Shure ? Rather unusual to have Intel peripherals
within a 65xx system.
> These machines are not that common, even in the UK, so they're worth
> saving if you ever see any. A few weeks back I spotted a totally bare
> Eurocard in a local electronics shop. I believe it to be a sound card for
> an Acorn System (although there are no markings on it at all...). One of
> the puzzles for the next few months is to work out what all the
> components should be (there is no silkscreen at all) and assemble it.
Sounds(:) like a fun project.
Gruss
H.
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HRK
Received on Wed Aug 11 1999 - 08:33:14 BST