ICT 7 - Chapter 3 - System Unit EN

What is the main function of the motherboard?

• To store data permanently in the computer.

• To provide power to the CPU only.

• To manage the cooling system of the computer.

• The main function of the motherboard is to connect and allow communication between all computer components.

Answer explanation

The main function of the motherboard is to connect and allow communication between all computer components, facilitating data transfer and power distribution, unlike the other options which describe different functions.

What does RAM stand for?

• Random Allocation Memory

• Rapid Access Module

• Read Access Memory

• Random 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.

What is the purpose of the CPU?

• To manage network connections.

• To provide power to the computer.

• The purpose of the CPU is to execute instructions and process data.

• To store data permanently.

Answer explanation

The CPU, or Central Processing Unit, is the main component of a computer responsible for executing instructions and processing data, making it essential for the operation of software and overall system functionality.

How does a GPU differ from a CPU?

• A GPU is optimized for parallel processing, while a CPU is optimized for sequential processing.

• A GPU is designed for single-threaded tasks, while a CPU handles multiple threads.

• A GPU is primarily used for general-purpose computing, while a CPU is for graphics processing.

• A GPU has a higher clock speed than a CPU, making it faster for all tasks.

Answer explanation

A GPU excels at parallel processing, allowing it to handle many tasks simultaneously, while a CPU is designed for sequential processing, focusing on executing tasks one at a time. This distinction makes the first choice correct.

What is the role of the cooling system in a computer?

• The cooling system enhances the graphics performance of the computer.

• The cooling system stores data temporarily for quick access.

• The cooling system prevents overheating and maintains optimal operating temperatures in a computer.

• The cooling system increases the computer's processing speed.

Answer explanation

The cooling system is essential for preventing overheating in a computer, ensuring that components operate within safe temperature limits, which is crucial for maintaining performance and longevity.

What type of memory is used for permanent storage?

• Registers

• Non-volatile memory (e.g., HDD, SSD, flash memory)

• Volatile memory (e.g., RAM)

• Cache memory

Answer explanation

Non-volatile memory, such as HDDs, SSDs, and flash memory, retains data even when power is off, making it suitable for permanent storage. In contrast, volatile memory like RAM loses data when power is lost.

What is the difference between primary and secondary storage?

• Secondary storage is volatile and used for immediate access.

• Primary storage is non-volatile and used for long-term data retention.

• Primary storage is used for backup purposes, while secondary storage is for active data.

• Primary storage is volatile and used for immediate access, while secondary storage is non-volatile and used for long-term data retention.

Answer explanation

Primary storage is volatile, meaning it loses data when power is off, and is used for immediate access. In contrast, secondary storage is non-volatile, retaining data long-term, making the correct choice clear.

What does ROM stand for?

• Read-Only Memory

• Rapid-Only Memory

• Random-Only Memory

• Read-Only Module

Answer explanation

ROM stands for Read-Only Memory, which is a type of non-volatile storage that is used to store firmware or software that is not intended to be modified frequently. The other options are incorrect interpretations.

Why is random access memory important for a computer?

• Random Access Memory (RAM) is important because it enables fast data access for the CPU, improving system performance and multitasking capabilities.

• RAM is the main component for internet connectivity.

• RAM is responsible for powering the computer.

• RAM is only used for storing files permanently.

Answer explanation

Random Access Memory (RAM) is crucial as it allows the CPU to quickly access data, which enhances overall system performance and enables effective multitasking. The other options incorrectly describe RAM's functions.

What components are typically found on a motherboard?

• CPU socket, RAM slots, chipset, power connectors, expansion slots, storage connectors, I/O ports.

• Graphics card slot, USB ports, HDMI connectors

• Cooling fans, audio jacks, network cables

• Power supply unit, monitor ports, keyboard connectors

Answer explanation

The correct choice lists essential motherboard components: CPU socket, RAM slots, chipset, power connectors, expansion slots, storage connectors, and I/O ports, which are crucial for system functionality.