If NO IMAGES will be shown, use www.z80.eu/blog instead of blog.z80.eu

Please note also - THIS BLOG ENDS HERE WITH THE LAST ENTRY FROM NOVEMBER 9th 2021.

I have prepared a new blog with wordpress at https://vintagecomputing.info !!!

Thank you.

Just take a look at this advertisment for the Science of Cambridge Wrist Calculator, this was really one of the first (or just the first) real smart watch with computing power - and it happened about 40 years before ! It was only available as a kit, and AFAIK it can't show the time (unless you typed in appropriate digits to show up the time) ;-)