Digital Applications Lecture 12: Shift Registers Operation

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What type of shift register is described in the text?

Parallel in/serial out
Serial in/serial out (correct)
Parallel in/parallel out
Serial in/parallel out

How many bits of data can the 4-bit shift register described in the text store?

2 bits
8 bits
3 bits
4 bits (correct)

Which of the following statements about the shift register implementation is true?

It is implemented using D flip-flops. (correct)
It is implemented using T flip-flops.
It is implemented using JK flip-flops.
It is implemented using SR flip-flops.

In the data entry operation described in the text, what happens after the fourth clock pulse (CLK4)?

The bit '0' appears on the Q3 output. (D) Signup and view all the answers

How is data retrieved from the shift register described in the text?

Serial output, one bit at a time (A) Signup and view all the answers

Which of the following is NOT a type of shift register?

Bidirectional Shift Register (A) Signup and view all the answers

Which of the following statements about the shift register design is true?

It is a right shift register. (B) Signup and view all the answers

What is the primary function of a shift register?

Data storage and data movement (D) Signup and view all the answers

In an n-bit shift register, how many flip-flops are required?

n (C) Signup and view all the answers

Which shift register type allows data to be loaded in parallel and shifted out serially?

Parallel In/Serial Out (PISO) (D) Signup and view all the answers

What is the purpose of clock pulses in a shift register?

To move data from stage to stage or out of the register (C) Signup and view all the answers

Which shift register type allows data to be loaded and retrieved in parallel?

Parallel In/Parallel Out (PIPO) (B) Signup and view all the answers

What is the state of the 4-bit shift register after three clock pulses, when the input sequence '1011' is applied to it?

0 1 1 0 (C) Signup and view all the answers

What is the main difference between a serial-in/serial-out shift register and a serial-in/parallel-out shift register?

Serial-in/parallel-out shift registers allow all stored bits to be accessed simultaneously, while serial-in/serial-out shift registers only allow one bit to be accessed at a time. (C) Signup and view all the answers

How are the J and K inputs of a JK flip-flop connected in a typical 4-bit shift register implementation?

The non-inverting output Q of one flip-flop is connected to the J input of the next flip-flop, and the inverting output Q' is connected to the K input. (B) Signup and view all the answers

What is the main advantage of a serial-in/parallel-out shift register over a serial-in/serial-out shift register?

Serial-in/parallel-out shift registers allow all stored bits to be accessed simultaneously, while serial-in/serial-out shift registers only allow one bit to be accessed at a time. (C) Signup and view all the answers

How are the inputs of the first flip-flop in a typical 4-bit shift register implementation connected?

The J input is connected to the serial data input, and the K input is connected to ground. (A) Signup and view all the answers

What is the purpose of the inverter connected between the J and K inputs of the first flip-flop in a 4-bit shift register using JK flip-flops?

The inverter ensures that the J and K inputs are always complementary, which is required for proper shift register operation. (D) Signup and view all the answers