Digital Subscriber Line (DSL) is a technology that allows high-speed internet access through regular telephone lines. Unlike traditional dial-up connections, which use the same line for voice calls and internet, DSL can transmit data and voice simultaneously. This means you can browse the web while talking on the phone without any interruptions. DSL works by splitting the telephone line into different channels, allowing for faster data transfer. It is widely used in homes and businesses because it provides a reliable connection with decent speeds. Overall, DSL is a popular choice for those seeking a stable internet connection without needing new wiring.