Sinclair ZX80 on Ebay

[Julian Skidmore]

Hi folks,

> Well I was. Was the difference the fact video stopped when the cpu
> was not in the idle key press loop?

There's quite a few differences between the ZX80 & ZX81.

The ZX81 supported 'compute and display' thanks to its more 'advanced' 
video chip!

The ZX81 was (AFAIK) the first use of a gate-array chip in a home computer!

The ZX81 had an 8K ROM with floating point arithmetic, 'graphics';
decent string-handling and ZX printer support!

The ZX81 syntax-checker was nicer.

The ZX81 had a heat-sink that worked!

The ZX81 was unbelievably slow!

The ZX80 had that certain 'je ne sais quoi' that makes it at least
worth 10x more than any ZX81. I'm convinced about this, being the lucky
owner of one* ;-)

-cheers from Julz @P

* It was given to me as well, for which I'm really thankful!