Understand key components in a computer: Before repairing a computer, it is important to understand the major components inside a computer system. These components include the CPU, memory, hard drive, motherboard, and graphics card, amongst others.Properly use tools: In order to effectively perform computer maintenance and repair work, using the right tools in the correct way is crucial. These tools can include screwdrivers, pliers, tweezers, air cans, and more.Learn troubleshooting skills: D...