Microprocessor Quiz

Which of the following is the brain of a microcomputer system?

• Memory

• Microprocessor

• Input device

• Output device

Which of the following is NOT a function of a microprocessor?

• Performing arithmetic operations

• Performing logical operations

• Managing input/output devices

• Storing data permanently

What is the word length of a microprocessor?

• Number of bytes it processes at a time

• Number of bits it processes at a time

• Number of characters stored in memory

• Number of instructions per cycle

Which microprocessor was used in the first IBM PC?

• Intel 4004

• Intel 8085

• Intel 8086

• Intel 8088

What is the purpose of the Program Counter (PC) in a microprocessor?

• Store data temporarily

• Hold the address of the next instruction to be executed

• Control input/output operations

• Store the result of operations

Which of the following microprocessors is a 16-bit processor?

• 8085

• 8086

• 8051

• 4004

Which register in the 8085 microprocessor holds the address of the next instruction?

• Stack Pointer

• Instruction Register

• Program Counter

• Accumulator

What is the clock frequency of the 8085 microprocessor?

• 1 MHz

• 2 MHz

• 3 MHz

• 5 MHz

Which of the following is NOT a type of addressing mode in microprocessors?

• Immediate

• Indirect

• Combinational

• Register

Which flag in the microprocessor is set when the result of an arithmetic operation is zero?

• Carry flag

• Zero flag

• Sign flag

• Overflow flag