UNIT 1_PA

What is the main function of a microcontroller?

• To process large amounts of data

• To perform specific control tasks in embedded systems

• To control a desktop computer

• To execute operating system instructions

Which of the following was the first true microcontroller?

• PIC16F84

• Intel 4004

• Atmel AVR

• 8051

Which of the following is NOT a difference between a microcontroller and a microprocessor?

• Microcontrollers have built-in memory and peripherals.

• Microprocessors require external memory to function.

• Microcontrollers are used for general-purpose computing.

• Microcontrollers are typically used in embedded systems.

Which factor is most important when selecting a microcontroller for a battery-operated embedded system?

• Clock speed

• Power consumption

• Memory size

• Peripherals

Which of the following is a feature of the PIC18F microcontroller?

• 8-bit data bus with 16-bit instructions

• No on-chip peripherals

• Requires external memory for operation

• Designed only for general-purpose computing

Which of the following microcontroller series is known for its low-cost and efficient embedded control systems?

• ARM Cortex

• PIC18 series

• 8051 series

• Intel 4004

What is the maximum flash memory capacity of the PIC18F46K22 microcontroller?

• 16KB

• 32KB

• 64KB

• 128KB

Which of the following statements is correct about PIC18F452/458 pin configuration?

• It has 20 pins for I/O functions.

• It supports up to 40 I/O pins.

• It uses a 16-pin package.

• It has no analog input pins.

What does the Bank Select Register (BSR) in the PIC18 microcontroller do?

• Selects the active bank of memory for register access

• Controls the external oscillator

• Handles the reset operation

• Configures the UART communication

What is the main purpose of the Watchdog Timer in a PIC18 microcontroller?

• To provide an accurate time reference for operations

• To reset the microcontroller in case of software failure

• To manage power consumption during idle states

• To monitor memory usage