Synchronous Signal Programming
In the wider software development community the word signal is sometimes used especially to denote synchronous events (sequences of samples, video frames, etc., with constant sample rate or frame rate) rather than asynchronous events, while the word event and data flow is often used for asynchronous event queues, but this is by no means universal. Especially in telecommunications, electrical engineering and signal processing, a digital signal is a sampled representation of an analog physical entity.
In telecommunications, the term signalling means asynchronous phone call metadata information exchange, for example of telephone numbers.
One application of synchronous signal programming is observer pattern.
Read more about this topic: Signal Programming
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