Side Projects Lab upgraded his Commodore 64 and put HDMI in it and you can buy the parts to do it yourself (links in the video description)
Tag: Commodore 64
Wow, Hilligoss Bakery in Indiana uses two Commodore 64’s as point of sale systems: According to a person who visited the store back in 2009, the co-owner of the bakery Michael Hilligloss stated that the computers were originally bought from Sears in the early 80s, and are running custom code written in assembler as they couldn’t find any software available that would take into account Indiana’s weird tax laws.
(via Time Extension)
Linus Akesson and The Commodordion