IT support is troubleshooting and problem solving in the field of information technology, including setting up computers for users within an organization, overseeing computer systems, and debugging whenever a problem arises.Businesses, nonprofits, school systems, and government organizations all rely on technology. Computers break, systems fail, phones die—when that happens, we need experts to fix them. IT support is all about troubleshooting and problem solving when the tech fails, and providing great customer service along the way. A job in IT support can mean in-person or remote help desk work in a range of organizations across many different industries.