If you are repairing the computer, then the list of tools you need will be dependent on what needs to be fixed. You may need a screwdriver, pliers, wrench, and electrical tape. Computer repair tools are what one would need as a technician to be able to diagnose and fix more than just the computer itself. The first thing that one needs is a screwdriver, not just any old screwdriver but a Phillips head or flathead, depending on the type of screw that is being dealt with. Other handy instruments include wire cutters and pliers for more delicate electronics and keyboard and mouse cleaner kits, as these can help fix most hardware problems.