Here are some of the important components of computer..

1. Central Processing Unit (CPU): The "brain" of the computer that performs all the calculations and processing of data.

2. Motherboard: The main circuit board of a computer that houses the CPU, memory, and other components and connects them to each other.

3. Memory (RAM): A type of temporary storage that holds data for the CPU to access and use in real-time.

4. Hard Disk Drive (HDD) or Solid State Drive (SSD): A type of long-term storage that holds the operating system, software, and other files.

5. Power Supply Unit (PSU): A component that converts AC power from an electrical outlet into DC power for the computer to use.

6. Graphics Processing Unit (GPU): A specialized processor for handling graphics-intensive tasks like gaming and video editing.

7. Input Devices: Components that allow a user to input data into the computer, such as a keyboard and mouse.

8. Output Devices: Components that display the results of the computer's processing, such as a monitor and speakers.

9. Optical Drives (CD/DVD drive): A component that reads data from and writes data to optical discs like CDs and DVDs.

10. Peripherals: Additional components that can be connected to the computer to enhance its capabilities, such as printers, scanners, and external hard drives.