ECE 294 - Analog and Digital Lab Quiz: Shift Registers

What is a shift register primarily used for?

• Storing data temporarily

• Generating random numbers

• Shifting data by one position at each clock pulse

• Performing arithmetic operations

What component is used in the logical configuration of a shift register?

• Capacitors

• Flip-flops

• Resistors

• Inductors

In a shift register, what happens to the bit shifted off the end?

• It is recycled back to the input

• It is saved internally

• It is stored in a buffer

• It is lost unless saved externally

What is the function of the control input in some shift registers?

• To enable parallel loading

• To reset the register

• To allow bidirectional shifting

• To increase the clock speed

How can n bits of data be loaded into a shift register in one clock cycle?

• Using a buffer

• Using a faster clock

• Using parallel inputs

• Using serial input

What is one of the important applications of shift register circuits?

• Data encryption

• Serial computation

• Parallel computation

• Signal amplification

What IC provides the exclusive-OR needed in the pseudo-random sequence generator circuit?

• 7400

• 7474

• 74164

• 7486

In a serial adder, what is the role of the D flip-flop?

• To store the sum

• To store the clock pulse

• To store the input data

• To store the carry out

What is the first step in performing addition using a serial adder?

• Shift the addend into register B

• Clear registers A and B, and the D flip-flop

• Run the adder for eight cycles

• Load the sum into register A

What is the purpose of the 74164 shift registers in the serial adder?

• To store the binary numbers to be added

• To store the clock pulses

• To store the carry

• To store the sum