a) An SR flip-f lop is constructed from NOR gates:

i) Complete the truth table for the SR flip-f lop.         

ii) One of the S, R combinations in the truth table should not be allowed to occur. State the values of S and R that should not be allowed to occur.
Explain your choice of values.

b) JK f lip-f lops are another type of f lip-f lop.
i) State the three inputs to a JK f lip-f lop.
ii) Give an advantage of using JK f lip-f lops.
iii) Describe two uses of JK f lip-f lops in computers.

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