Welcome to the revision page for IGCSE ICT Syllabus course code 0417! In this section, we will cover the topic of hardware components in a computer system. Let's get started!

1. What is hardware?
Hardware refers to the physical components of a computer system. These components can be divided into internal and external components.
 

2. Internal Components
Internal components are housed inside the computer system. Some important internal components are:

- Central Processing Unit (CPU): The CPU is the brain of the computer that processes data and instructions.
- Processor: The processor is responsible for executing instructions and performing calculations.
- Motherboard: The motherboard is the main circuit board that connects all the components together.
 

3. Internal Memory
Internal memory is another important component of a computer system. It includes:

- Random Access Memory (RAM): RAM is used to temporarily store data while the computer is running.
- Read-Only Memory (ROM): ROM is a type of memory that stores permanent data, such as the BIOS that controls the computer's startup process.
 

4. Hardware Components
There are several hardware components that can be added to a computer system. Some of the important ones are:

- Graphics Card: Graphics cards enhance the quality of images and videos on the computer.
- Sound Card: Sound cards improve the sound quality of the computer.
- Network Interface Card (NIC): NICs connect the computer to a network, allowing it to communicate with other computers and devices.
- Camera: Cameras capture images and videos, and can be used for a variety of purposes such as video conferencing or creating multimedia content.
- Internal/External Storage Devices: Internal storage devices include hard disk drives (HDD) and solid-state drives (SSD), while external storage devices include USB drives and external hard drives. These devices are used to transfer and store data.
- Input/Output Devices: Input devices include keyboards, mice, and scanners, while output devices include monitors, printers, and speakers. These devices are used to enter data into the computer and display or output data from the computer.

 

5. Conclusion
Understanding the hardware components in a computer system is crucial for troubleshooting hardware issues and performing basic hardware maintenance. We hope this simplified revision has helped you in your preparation for IGCSE ICT Syllabus course code 0417.