A certificate of achievement may be earned by completing all the courses required for this major with a grade of C or better. Computer and IT support specialists repair, troubleshoot, build and upgrade the computers, networks and other high-tech devices that we use every day. Theyre the people you turn to when you run into technical problems you just cant solve on your own. They can help you replace a part or install new hardware or software. They can set up new equipment and get you connected a network. They can answer questions or help guide you in resolving a problem on your own.