signal
<operating system> A predefined message sent between two Unix processes
or from the kernel to a process. Signals communicate the occurrence of
unexpected external events such as the forced termination of a process by the
user. Each signal has a unique number associated with it and each process has a
signal handler set for each signal. Signals can be sent using the kill system
call.
(1996-12-10)
Nearby terms:
SIGLA « SIGMA « SIGNAL « signal » signalling
rate » Signalling System 7 » signal-to-noise ratio
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