Hi Izabella, I have 20+ years of experience in IT, started as a desktop technician and worked my way up to a Global Systems Architect. Computers and Networking are two different technologies. In a small organization you might be responsible for both, in a larger organization, you would specialize in one or the other, with many more specialized layers in either technology! A day in the life of either is Dynamic. You will be expected quickly respond to issues, maintain and build IT infrastructure (PC's or Network devices) on a constant basis, LEARN new technologies almost constantly and sometimes be on-call for issues during nights and weekends depending on the role. IT is critical to most mid to large companies business operations, but you are expected to keep things running without necessarily receiving a lot of accolades. You MUST love the work to get into the field and be a truly top-tier performer. Running Systems or Networks is complex and demanding. Every day brings new opportunities to learn and new challenges. Constant training will be the norm as long as you stay in the field. Think of it like being a nurse or doctor who has to constantly re-qualify in order to stay relevant. There are management and senior management careers that can lead out of these roles as well as sales opportunities. Good luck in your career.