Computer Hardware Overview

Importance of RAM

• RAM is crucial for computer performance.

• Small RAM can result in slow performance if overloaded; adequate RAM is necessary for efficient operation.

Processor (CPU)

• The CPU is the "brain" of the computer.

• Modern CPUs have been miniaturized significantly, now comparable to size of a SIM card.

• CPUs require constant cooling, usually managed by a fan.

Motherboard

• The motherboard is the core component that connects all parts of the computer.

• It functions as the main hub where all components are connected.

• Failure of the motherboard can lead to total malfunction of the PC.

Power Supply

• Supplies power to all components of the computer.

• Contains multiple cables to distribute power to devices like optical drives and hard drives.

• Must be connected to each component during assembly or repair.

Graphics Processing

• Graphics card functions independently to handle visual output, reducing workload on the CPU.

• Essential for computers requiring high graphical performance.

Hard Drive vs. RAM

• Hard drive is a permanent storage device; RAM is temporary storage that is faster but volatile, meaning it loses data when power is off.