Function: Temporary storage for active programs and data. Faster than a hard drive but loses data when powered off.

Key Features:

• Measured in GB (Gigabytes) – more RAM = smoother multitasking.

• Types: DDR4, DDR5 (faster and more efficient versions).

Function: The "brain" of the computer; executes instructions from programs and performs calculations.

Key Features:

• Measured in clock speed (GHz) – higher speed = faster processing.

• Modern CPUs have multiple cores (e.g., dual-core, quad-core) for multitasking.

Function: The main printed circuit board (PCB) that connects all components (CPU, RAM, storage, etc.) and allows them to communicate.

Key Features:

• Contains slots for CPU, RAM, and expansion cards (GPU, sound card).

• Has ports for USB, HDMI, and other peripherals.

• Includes chipsets that manage data flow.

Function: Stores the operating system, software, and files permanently.

• HDD (Hard Disk Drive): Uses spinning magnetic disks; cheaper but slower.

• SSD (Solid State Drive): No moving parts; much faster but more expensive.

Function: Converts AC power from the wall outlet into DC power for computer components.

Key Features:

• Rated in watts (W) – higher wattage supports more powerful components.

• Includes cables for motherboard, CPU, GPU, and drives.