What is the main circuit board of a computer called?

• Motherboard

• CPU

• RAM

• Hard drive

Answer explanation

The main circuit board of a computer is called the motherboard. It connects all components, including the CPU, RAM, and storage devices, allowing them to communicate with each other.

What component is often referred to as the 'brain' of the computer?

• RAM

• Power supply unit

• Motherboard

• CPU

Answer explanation

The CPU, or Central Processing Unit, is often called the 'brain' of the computer because it performs calculations and processes instructions, making it essential for the computer's operation.

Which type of memory is considered short-term and is erased when the computer is turned off?

• Optical drive

• CPU

• RAM

• Hard drive

Answer explanation

RAM (Random Access Memory) is a type of short-term memory that temporarily stores data for quick access. It is volatile, meaning it is erased when the computer is turned off, unlike optical drives, CPUs, or hard drives.

Michael is setting up his new computer. What is the function of the power supply unit in his computer?

• To connect to the internet

• To process instructions

• To convert power from the wall outlet

• To store data permanently

Answer explanation

The power supply unit's main function is to convert power from the wall outlet into usable electricity for the computer's components, making 'To convert power from the wall outlet' the correct choice.

Which component is responsible for what you see on the monitor?

• Network card

• Sound card

• Bluetooth card

• Video card

Answer explanation

The video card is responsible for rendering images and graphics that are displayed on the monitor. It processes visual data and outputs it, making it the correct choice for what you see on the screen.

Arjun wants to connect his computer to the Internet. What component does he need?

• To increase processing speed

• To store data

• To improve sound quality

• To connect to a network and access the Internet

Answer explanation

The purpose of a network card is to connect a computer to a network, enabling access to the Internet. It facilitates communication between devices, making it essential for online connectivity.

Arjun is learning about computers in his class. His teacher asks, 'What does RAM stand for?'

• Remote Access Memory

• Random Access Memory

• Read Access Memory

• Rapid Access Memory

Answer explanation

RAM stands for Random Access Memory, which is a type of computer memory that can be accessed randomly. It is crucial for storing data that is actively being used or processed by the computer.

What is the function of a heat sink?

• To store data

• To connect to the internet

• To improve video quality

• To absorb heat from the CPU

Answer explanation

A heat sink is designed to absorb heat from the CPU, helping to dissipate excess heat and maintain optimal operating temperatures, which is crucial for the performance and longevity of the computer.

Michael is setting up a new home office and wants to connect his wireless headphones to his computer. Which component should he use for wireless communication over short distances?

• Network card

• Sound card

• Video card

• Bluetooth card

Answer explanation

The Bluetooth card is specifically designed for wireless communication over short distances, making it the correct choice. Other options like network, sound, and video cards do not serve this purpose.

Aria is building a custom gaming computer. What is the role of expansion cards in her computer?

• To provide additional storage

• To enhance or add new capabilities

• To cool the CPU

• To power the computer

Answer explanation

Expansion cards are used to enhance or add new capabilities to a computer, such as improved graphics, sound, or network connectivity, rather than providing storage, cooling, or power.