Computer assembly typically involves several stages, each focusing on different aspects of assembling the hardware components into a functional computer system. Here are the main stages involved in computer assembly:

1. **Component Preparation**: This stage involves preparing all the necessary hardware components for assembly. This includes unpacking components such as the motherboard, CPU, GPU, RAM, storage drives, power supply, case, and peripherals, and ensuring that all required components and accessories are available.

2. **Motherboard Installation**: The motherboard serves as the central hub that connects all the hardware components. In this stage, the motherboard is installed into the computer case, ensuring proper alignment and securing it in place using screws or mounting brackets.

3. **CPU and CPU Cooler Installation**: The CPU (Central Processing Unit) is installed onto the motherboard's CPU socket, following the manufacturer's instructions and ensuring proper orientation and alignment. A CPU cooler is then attached to the CPU to dissipate heat generated during operation.

4. **RAM Installation**: RAM (Random Access Memory) modules are installed into the motherboard's memory slots. Care is taken to align the notches on the RAM module with the slot on the motherboard, and the modules are firmly seated to ensure proper connection.

5. **Storage Drive Installation**: Hard disk drives (HDDs), solid-state drives (SSDs), or other storage drives are installed into the computer case, either in drive bays or using mounting brackets. Data and power cables are connected to the drives and the motherboard.

6. **Power Supply Installation**: The power supply unit (PSU) is installed into the computer case and secured in place. Power cables from the PSU are connected to the motherboard, CPU, GPU, storage drives, and other components to provide power to the system.

7. **Expansion Card Installation**: Additional expansion cards such as graphics cards (GPU), sound cards, network interface cards (NIC), and other peripheral cards are installed into the appropriate expansion slots on the motherboard, if required.

8. **Cable Management**: Cables from various components, including power cables, data cables, and case connectors, are routed neatly and organized to ensure proper airflow, aesthetics, and ease of maintenance. Cable ties or clips may be used to secure cables and prevent clutter.

9. **Final Checks and Testing**: Once all components are installed and cables are connected, a final inspection is conducted to ensure that everything is properly assembled and secured. The computer system is then powered on and tested to verify that it boots up correctly, detects all hardware components, and operates without errors.

10. **Operating System Installation**: After successful hardware assembly and testing, an operating system (OS) is installed onto the storage drive. This includes formatting the drive, partitioning if necessary, and installing the OS software, drivers, and necessary applications.

By following these stages, computer assembly ensures that all hardware components are properly installed and configured to create a functional computer system ready for use.