TV’s from the 80’s and 90’s definitely weren’t digitizing incoming video and generating graphics. So how did they overlay things like the channel, volume, and menus?
In: Technology
Everything is analog at the end of the day – sound, light, electric impulses, etc.
“Digitizing” something is a metaphysical fantasy adventure. It’s an idea that is used to transmit information with less error and/or with greater throughput, but it isn’t real. It’s a different perspective on how to interpret information.
In real life there’s fuzziness and ambiguity in everything. The way that a “digital” system overlays information on top of another set of information is fundamentally, on the inside, the same way that a CRT would overlay analog information over another analog signal. They are the same thing from a purely physical standpoint, just with different levels of abstraction.
Latest Answers