Cyber EOP - Physical Devices By Mr. B

What is the primary function of the Central Processing Unit (CPU)?

• Cooling the system

• Rendering graphics

• Executing instructions from programs

• Storing data permanently

Answer explanation

The primary function of the CPU is executing instructions from programs. It processes data and performs calculations, making it the core component for running software applications.

What does RAM stand for?

• Read Access Memory

• Random Access Memory

• Real-time 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. This distinguishes it from other types of memory, making 'Random Access Memory' the correct choice.

Which component connects all other parts of the computer?

• Graphics Processing Unit

• Motherboard

• Power Supply Unit

• Storage Device

Answer explanation

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

What is the main purpose of a Graphics Processing Unit (GPU)?

• To store data

• To manage power supply

• To connect peripherals

• To render images and videos

Answer explanation

The main purpose of a GPU is to render images and videos, making it essential for graphics-intensive tasks like gaming and video editing. It processes and accelerates the rendering of visuals, unlike the other options listed.

What does the Power Supply Unit (PSU) do?

• Manages cooling

• Converts electricity to the correct voltage

• Stores data

• Processes instructions

Answer explanation

The Power Supply Unit (PSU) converts electricity to the correct voltage, ensuring that the components of a computer receive the appropriate power they need to function properly.

What type of storage device uses spinning platters?

• Solid-State Drive (SSD)

• Hard Disk Drive (HDD)

• Flash Drive

• Optical Drive

Answer explanation

A Hard Disk Drive (HDD) uses spinning platters to read and write data, while Solid-State Drives (SSDs) and Flash Drives use flash memory with no moving parts. Optical Drives use lasers to read data from discs.

What is the function of expansion cards?

• To connect to the internet

• To add functionality to the computer

• To store data

• To cool the CPU

Answer explanation

Expansion cards are used to add functionality to a computer, such as enhanced graphics, sound, or additional ports. They do not primarily serve to connect to the internet, store data, or cool the CPU.

Which cooling method uses water to dissipate heat?

• Liquid cooling

• Thermal paste

• Air cooling

• Passive cooling

Answer explanation

Liquid cooling uses water to effectively dissipate heat from components, making it more efficient than air cooling. Thermal paste aids in heat transfer but does not cool, while passive cooling relies on natural convection without water.

What is the purpose of the computer case?

• To enhance graphics

• To manage power supply

• To protect internal components

• To store data

Answer explanation

The primary purpose of a computer case is to protect internal components from dust, damage, and electromagnetic interference, ensuring the system operates safely and efficiently.

Which of the following is an input device?

• Keyboard

• Speaker

• Printer

• Monitor

Answer explanation

The keyboard is an input device used to enter data into a computer. In contrast, the speaker, printer, and monitor are output devices that display or produce information.