It is used to repeat any block of code multiple times (iteration)
Answer:
A subroutine is a block of statements that carries out one or more tasks. ... they share all variables with the rest of the main program. ... Once you have defined a function in your program, you may use it in any appropriate expression, such as: ... Thus, functions can- not change the values of the arguments passed to them.
Explanation:
Without a/an Operating system. a computer is useless
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