A computer technician diagnoses, repairs, and maintains hardware and software issues in desktops, laptops, and networks. They ensure systems run efficiently, perform upgrades, install programs, and protect against security threats. Skilled in troubleshooting, computer technicians are essential for both home users and businesses needing reliable tech support and IT solutions. https://www.auopcecareertraining.com/courses/it-computer-technology/computer-technician-comptia-a