Quiz on Computer Registers

What is the primary function of registers in a CPU?

• To connect external devices to the CPU

• To store data and instructions for quick processing

• To manage the power supply of the computer

• To increase the overall memory capacity

Which of the following is NOT a characteristic of registers?

• Large size

• High speed

• Volatility

• Direct access

What does the Program Counter (PC) hold?

• The result of the last operation

• The current instruction being executed

• The address of the next instruction to be executed

• The memory address of the operand

Which register is used to hold temporary data during processing?

• Temporary Register (TR)

• Data Register (DR)

• Accumulator (AC)

• Instruction Register (IR)

How many bits does the Address Register (AR) have?

• 16 bits

• 12 bits

• 8 bits

• 32 bits

What is the role of the Input Register (INPR)?

• To manage the memory addresses

• To store the current instruction code

• To hold the output character for display

• To receive an 8-bit character from an input device

Which of the following registers holds the instruction code?

• Data Register (DR)

• Instruction Register (IR)

• Address Register (AR)

• Program Counter (PC)

What is the maximum capacity of the memory unit mentioned?

• 8192 words

• 4096 words

• 2048 words

• 16384 words