OT - Memory usage in days of yore

[Bruce Adams]

On Thu, 10 Apr 2008 21:32:26 +0100, Janice Caron <caron800 at googlemail.com>  
wrote:

> On 10/04/2008, Janice Caron <caron800 at googlemail.com> wrote:
>> On 10/04/2008, Georg Wrede <georg at nospam.org> wrote:
>>  >  16k ROM, and either 16k or 48k RAM, according to
>>  >  http://en.wikipedia.org/wiki/Sinclair_ZX_spectrum
>>
>>
>> That was the Spectrum, a different machine, and a couple of years
>>  later. We're talking ZX80 here.
>>
>>  Course, we didn't have the internet back in those days. Hell, we
>>  hardly had computers! But this link should shed some light.
>>  http://computermuseum.50megs.com/brands/zx80.htm
>
> Seems my memory was at fault in one regard, however. It had only a 4K
> ROM, not 16 as I originally stated.

You could get an external RAM pack which I think was 16K
We had a ZX80 which we updated to an 81 somehow as well as a proper pucker  
ZX81.