3 ms·
Some of them look like railway signalling panels. We still have a lot of them in Europe, newer ones are computerised of course but still plenty of relay-based o
by red_admiral 6y ago
Some of them look like railway signalling panels. We still have a lot of them in Europe, newer ones are computerised of course but still plenty of relay-based ones in operation.
- supernova87a 6y agoSpeaking of this, when I see metro/subway systems in Asia, I think about how they decide to hard-code vs. have dynamic displays for the in-car maps and station announcements. You know, because their subway systems actually grow and change over there, during the course of a few years.