networks enable computers to talk to one another, allowing users to share resources. Networks are made up of various devices such as computers, servers, switches, and routers all connected together by cables or wireless signals. Understanding the basics of how networks are put together is an important step in building a wireless network in a community or neighborhood. allow multiple users to share a single hardware device (like a printer) and make information easier to access among network users. Computer network professionals work hands-on with the physical parts of a computer to build and support networks, ensuring they operate efficiently and securely.