A modem, short for , is a networking device that plays a crucial role in modern telecommunications and computer networks. It serves as a bridge between devices, such as computers or routers, and analog communication systems, such as telephone lines or cable television networks. Modems are responsible for digital data into analog signals for transmission and analog signals into digital data for reception.
Dial-up modems were prevalent in the early days of the internet. They establish connections through the switched telephone network (PSTN) using a standard telephone line. Dial-up modems offer relatively slow data transfer rates but are still used in some or rural areas with limited connectivity options. DSL (Digital Subscriber Line) modems provide high-speed internet access over existing telephone lines. DSL technology allows for data transmission compared to dial-up modems.
Cable modems deliver internet access through cable television infrastructure. They offer high data transfer speeds and are widely used in internet services. Fiber-optic modems connect to fiber-optic cables, providing extremely high-speed internet connections. Fiber-optic technology offers exceptional and low latency.
Keywords
bandwidth | faster | broadband | remote | digital | demodulating | public | cable | modulator-demodulator | modulating |
