Re: Storage Cost Calculation

From	Denis McMahon <denismfmcmahon@gmail.com>
Newsgroups	comp.lang.python
Subject	Re: Storage Cost Calculation
Date	2014-09-29 14:44 +0000
Organization	A noiseless patient Spider
Message-ID	<m0br8i$b3k$4@dont-email.me> (permalink)
References	(2 earlier) <mailman.14430.1411832704.18130.python-list@python.org> <542760e9$0$13012$c3e8da3$5496439d@news.astraweb.com> <mailman.14438.1411868264.18130.python-list@python.org> <542776aa$0$13001$c3e8da3$5496439d@news.astraweb.com> <XnsA3B6D6EE63BD0duncanbooth@127.0.0.1>

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On Sun, 28 Sep 2014 20:07:31 +0000, Duncan Booth wrote:

> Later on the B+ had 64k of RAM and the B+128 had 128k of RAM and in each
> case the additional RAM was paged in as necessary but I don't think the
> RAM in the B was ever expandable.

You could get various expansions to page multiple roms, I had a machine 
at one point with 15 multiple internally and a zif socket on top.

I think there was a board that sat across the 4 paged ROM sockets which 
then had a cable to another board with 16 sockets on it, and one of the 
16 sockets came through the case in a ZIF.

Aries or Dabs or Watford Electronics I expect.

I also remember soldering switches to TEAC drives from RS to make them 
40 / 80 track switchable.

Duncan, your name looks mighty familiar ..... Do you know a Judith?

-- 
Denis McMahon, denismfmcmahon@gmail.com

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Thread

Re: Storage Cost Calculation MRAB <python@mrabarnett.plus.com> - 2014-09-27 16:41 +0100
  Re: Storage Cost Calculation Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-09-28 11:14 +1000
    Re: Storage Cost Calculation Chris Angelico <rosuav@gmail.com> - 2014-09-28 11:37 +1000
      Re: Storage Cost Calculation Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-09-28 12:47 +1000
        Re: Storage Cost Calculation Chris Angelico <rosuav@gmail.com> - 2014-09-28 13:35 +1000
          Re: Storage Cost Calculation Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-09-28 14:39 +1000
            Re: Storage Cost Calculation Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-09-28 11:32 -0400
        Re: Storage Cost Calculation Ian Kelly <ian.g.kelly@gmail.com> - 2014-09-27 23:04 -0600
        Re: Storage Cost Calculation Duncan Booth <duncan.booth@invalid.invalid> - 2014-09-28 20:07 +0000
          Re: Storage Cost Calculation Denis McMahon <denismfmcmahon@gmail.com> - 2014-09-29 14:44 +0000

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