What is the primary function of the control memory in a microprogrammed control unit?

To store the microprogram that generates control signals for executing instructions.

Fill in the blank: The ______ is responsible for initiating sequences of microoperations in a digital computer.

Control unit

True or False: A microprogrammed control unit can only use read-only memory (ROM) for its control memory.

False. Control memory can be either read-only memory (ROM) or writable control memory (dynamic microprogramming).

What type of signals are used in hardwired control units to generate control signals?

Conventional logic design techniques.

Riddle: I store the microinstructions that control a computer's operations, yet I am not a processor. What am I?

Control memory

In a microprogrammed control unit, what does the control address register (CAR) specify?

The address of the microinstruction to be executed next.

Fill in the blank: A sequence of microinstructions is known as a ______.

Microprogram

Which of the following is not a characteristic of microprogramming? A) Flexibility B) Complexity C) Hardwired design D) Systematic address sequencing

C) Hardwired design

True or False: The accumulator register (AC) is one of the four registers associated with the processor unit.

True.

What does the sequencing word in a microinstruction determine?

The next microinstruction address.

Riddle: I help determine the next instruction address and am essential for branching operations. What am I?

Control address register

What is the advantage of using writable control memory (WCS) in a microprogrammed control unit?

It allows the microprogram to be modified or changed by a systems programmer.