50) In the following question, match each of the items A, B and C on the left with an approximation item on the right
A. Shift register can be used
B. A multiplexer can be used
C. A decoder can be used
1. for code conversion
2. to generate memory slip to select
3. for parallel to serial conversion
4. as many to one switch
5. for analog to digital conversion

51) Extremely low power dissipation and low cost per gate can be achieved in:

52) An example of a universal building block is:

53) The dual of the switching function x + yz is:

54) The characteristic equation of D flip-flop is: