1. Central Processing Unit (CPU): The CPU, also known as the processor, is the brain of the computer and performs calculations and executes instructions.
2. Memory: Memory, also known as RAM (Random Access Memory), is where the computer stores data temporarily while it is being processed.
3. Storage Devices: Storage devices, such as hard drives and solid-state drives, store data permanently.
4. Input/Output Devices: Input/output devices, such as keyboards, mice, and monitors, allow users to interact with the computer.