What is the full form of modem?
1 Answer
The full form of **modem** is **Modulator-Demodulator**.
A **modem** is a device that enables communication between computers over a telephone line, cable, or other data communication channels. It works by converting (modulating) digital data from a computer into an analog signal that can travel over analog transmission lines (like a phone line) and then converting (demodulating) incoming analog signals back into digital data that a computer can understand.
Here’s a breakdown of its components:
1. **Modulation**: This is the process of converting digital signals (1s and 0s) from a computer into analog signals (which are continuous waveforms). This allows the digital data to be transmitted over analog communication lines.
2. **Demodulation**: This is the reverse process, where the analog signals are converted back into digital signals that the computer can read and process.
The combination of these two functions—modulation and demodulation—is why the device is called a **modem**. In the early days of home computing, modems were primarily used to dial into services like bulletin board systems (BBS) and to access the internet over telephone lines.
Over time, modems have evolved, and now there are different types for various high-speed internet connections, such as DSL, cable, and fiber optic modems. However, the core function remains the same: facilitating digital communication over an analog transmission medium.
A **modem** is a device that enables communication between computers over a telephone line, cable, or other data communication channels. It works by converting (modulating) digital data from a computer into an analog signal that can travel over analog transmission lines (like a phone line) and then converting (demodulating) incoming analog signals back into digital data that a computer can understand.
Here’s a breakdown of its components:
1. **Modulation**: This is the process of converting digital signals (1s and 0s) from a computer into analog signals (which are continuous waveforms). This allows the digital data to be transmitted over analog communication lines.
2. **Demodulation**: This is the reverse process, where the analog signals are converted back into digital signals that the computer can read and process.
The combination of these two functions—modulation and demodulation—is why the device is called a **modem**. In the early days of home computing, modems were primarily used to dial into services like bulletin board systems (BBS) and to access the internet over telephone lines.
Over time, modems have evolved, and now there are different types for various high-speed internet connections, such as DSL, cable, and fiber optic modems. However, the core function remains the same: facilitating digital communication over an analog transmission medium.