Microcontroller Quiz Chapter 2

What is a microcontroller?

• A small computer on a single chip containing a processor, memory, and input/output

• A type of monitor used for display purposes

• A large mainframe computer used in data centers

• A type of printer used for printing documents

What is the purpose of an oscillator circuit in a microcontroller?

• To provide the microcontroller with a clock for program execution

• To control the temperature of the microcontroller

• To store data in the memory of the microcontroller

• To connect the microcontroller to external devices

What is the function of a reset circuit in a microcontroller?

• To provide power to the microcontroller

• To increase the speed of the microcontroller

• To put the microcontroller into a known state and initialize registers

• To connect the microcontroller to the internet

How can an LED be connected to a microcontroller output port?

• By connecting it to the power supply of the microcontroller

• By using a relay interface

• Directly without any additional components

• Through a resistor to limit current and prevent damage

What is the purpose of a button input in a microcontroller?

• To cool down the microcontroller

• To generate power for the microcontroller

• To increase the processing speed of the microcontroller

• To provide user input to the microcontroller

What is the role of a development board in working with a microcontroller?

• To store data in the memory of the microcontroller

• To control the temperature of the microcontroller

• To act as a display screen for the microcontroller

• To facilitate work with a particular microcontroller by providing necessary components

What does the delay() function do in Arduino timing?

• Pauses for a few milliseconds

• Resets the microcontroller

• Sends data to external devices

• Increases the clock speed of the microcontroller

What is the difference between digital and analog in microcontrollers?

• Digital is used for input and analog is used for output

• Digital has infinite values while analog has two values

• Analog is used for input and digital is used for output

• Digital has two values (on and off) while analog has infinite values

What is the purpose of a transistor in a microcontroller circuit?

• To cool down the microcontroller

• To increase the clock speed of the microcontroller

• To provide power to the microcontroller

• To drive higher current loads from a port pin

How can a relay be used in a microcontroller interface?

• To store data in the memory of the microcontroller

• To connect the microcontroller to the internet

• To increase the processing speed of the microcontroller

• To switch inductive loads and prevent damage to the transistor