2026-07-31 16:39 UTC
I've powered up the trigger module in this video. It is switched on or off by two inputs and remembers its state until switched again. I push two buttons to turn it on or off, and its state is displayed by two vintage neon bulbs. This may seem trivial, but the trigger (now called a flip-flop) is a key component of computers.
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@kenshirriff@oldbytes.space 2026-07-31 16:40
The IBM 604 calculator used about 1300 tubes and rented for $550 a month. It was a very popular system with over 5600 units produced. IBM advertised it as equivalent to 150 engineers.