An internet connection enables devices to access the web for various tasks like browsing, streaming, and gaming. Types include dial-up (slow but pioneering), DSL (faster than dial-up, using phone lines), cable internet (using TV cables), fiber-optic (lightning-fast speeds), satellite (ideal for rural areas), Wi-Fi (wireless internet via routers), and mobile broadband (4G/5G cellular networks). Each varies in speed, coverage, and is suited for different needs.