Registers (PHC504) - Daily Practice problems

Model Questions on Registers

1. What is a register? How can a flip-flop be used to store a bit?
2. Mention the classifications of registers. Describe the working of serial in serial-out shift register.
3. Describe the working of parallel in the parallel-out shift register. Explain how numbers can be shifted in or out of this register.
4. What is the difference between a parallel in parallel out shift register and a parallel in serial out shift register? Discuss the working of parallel in serial out shift register.
5. Explain the operation of the serial in the parallel-out shift register.
6. Draw the circuit of the bit bi-directional shift register. Explain it works.
7. A 4-bit serial in parallel out right shift register initially contains 0101. The data 1011 is to be entered. After three clock pulses, what is the data at the outputs of the register?
8. What do you understand by the cyclic shift register? Explain the operation of the ring counter using a timing diagram.
9. What is the difference between a ring counter and a twisted ring counter? Discuss the operation of the bit Johnson counter using a timing diagram and the sequence.
10. If the initial state of a 6-bit ring counter is 101101, what is the state of the counter after the third clock pulse? Explain with a trimming diagram.
11. What is the main advantage of a universal shift register? Draw and explain the circuit of four bit universal shift register.
12. Name any two applications of the shift register. Explain one application in detail.
13. Explain how shift registers can be used in serial adder circuits. Draw and explain the circuit of four-bit serial adder circuit.
14. Discuss the use of shift registers for generating and checking the parity bit.
15. Discuss the use of shift register in sequence generator.
16. Design a sequence generator to generate a sequence ….10110 …
17. Design a sequence generator to generate a sequence ….110011 …