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Which of the following is true about a Modem?
- a)Modem is a device that modulates/demodulates carrier waves with digital information to transmit the data
- b)Modems are measured in terms of speed by the amount of data they can send in a given unit time eg. bits per second.
- c)A modem shares the internet connection with multiple devices by dispatching packets of information
- d)The modem communicates with the Internet Service Provider
Correct answer is option 'A'. Can you explain this answer?
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Which of the following is true about a Modem?a)Modem is a device that ...
The correct answer is Modem is a device that modulates/demodulates carrier waves with digital information to transmit the data.
- A modem or broadband modem is a hardware device that connects a computer or router to a broadband network.
- Some examples of modems are - cable modems and DSL modems.
- A modem is a short form for modulator/demodulator.
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Which of the following is true about a Modem?a)Modem is a device that ...
Modem
A modem, short for modulator-demodulator, is a device that enables communication between a computer or other digital devices and the internet. It is an essential component for establishing an internet connection and transmitting data over various types of networks.
Function of a Modem
A modem performs two primary functions: modulation and demodulation. Let's discuss each of these functions in detail:
1. Modulation: Modulation is the process of converting digital information into analog signals that can be transmitted over a communication channel. In the case of a modem, it modulates digital data from a computer into carrier waves that can be transmitted over telephone lines or other types of connections. This modulation process involves varying the amplitude, frequency, or phase of the carrier wave to represent the digital information.
2. Demodulation: Demodulation is the reverse process of modulation. It involves converting the analog signals received from the communication channel back into digital data that can be understood by the receiving device, such as a computer. The modem demodulates the analog signals by extracting the original digital information from the carrier waves.
Measurement of Modem Speed
The speed of a modem is typically measured in terms of the amount of data it can send or receive within a given unit of time. The most common unit of measurement is bits per second (bps). For example, a modem with a speed of 56,000 bps can transmit or receive 56,000 bits of data per second. Higher-speed modems, such as DSL or cable modems, can offer much faster data transfer rates, ranging from several megabits per second (Mbps) to hundreds of Mbps.
Other Functions of a Modem
While the primary function of a modem is to establish an internet connection by modulating and demodulating carrier waves, it also performs some additional tasks:
1. Sharing Internet Connection: Some modems have built-in router capabilities, allowing them to share the internet connection with multiple devices. These modems can dispatch packets of information to different devices connected to the local network.
2. Communication with Internet Service Provider (ISP): The modem acts as a bridge between the user's computer and the ISP. It establishes a connection with the ISP's network and facilitates the transmission of data between the user's devices and the internet.
In conclusion, a modem is a device that modulates and demodulates carrier waves with digital information to transmit data. It is measured in terms of speed by the amount of data it can send in a given unit of time. Additionally, some modems can share the internet connection with multiple devices and communicate with the ISP.
A modem, short for modulator-demodulator, is a device that enables communication between a computer or other digital devices and the internet. It is an essential component for establishing an internet connection and transmitting data over various types of networks.
Function of a Modem
A modem performs two primary functions: modulation and demodulation. Let's discuss each of these functions in detail:
1. Modulation: Modulation is the process of converting digital information into analog signals that can be transmitted over a communication channel. In the case of a modem, it modulates digital data from a computer into carrier waves that can be transmitted over telephone lines or other types of connections. This modulation process involves varying the amplitude, frequency, or phase of the carrier wave to represent the digital information.
2. Demodulation: Demodulation is the reverse process of modulation. It involves converting the analog signals received from the communication channel back into digital data that can be understood by the receiving device, such as a computer. The modem demodulates the analog signals by extracting the original digital information from the carrier waves.
Measurement of Modem Speed
The speed of a modem is typically measured in terms of the amount of data it can send or receive within a given unit of time. The most common unit of measurement is bits per second (bps). For example, a modem with a speed of 56,000 bps can transmit or receive 56,000 bits of data per second. Higher-speed modems, such as DSL or cable modems, can offer much faster data transfer rates, ranging from several megabits per second (Mbps) to hundreds of Mbps.
Other Functions of a Modem
While the primary function of a modem is to establish an internet connection by modulating and demodulating carrier waves, it also performs some additional tasks:
1. Sharing Internet Connection: Some modems have built-in router capabilities, allowing them to share the internet connection with multiple devices. These modems can dispatch packets of information to different devices connected to the local network.
2. Communication with Internet Service Provider (ISP): The modem acts as a bridge between the user's computer and the ISP. It establishes a connection with the ISP's network and facilitates the transmission of data between the user's devices and the internet.
In conclusion, a modem is a device that modulates and demodulates carrier waves with digital information to transmit data. It is measured in terms of speed by the amount of data it can send in a given unit of time. Additionally, some modems can share the internet connection with multiple devices and communicate with the ISP.
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Which of the following is true about a Modem?a)Modem is a device that modulates/demodulates carrier waves with digital information to transmit the datab)Modems are measured in terms of speed by the amount of data they can send in a given unit time eg. bits per second.c)A modem shares the internet connection with multiple devices by dispatching packets of informationd)The modem communicates with the Internet Service ProviderCorrect answer is option 'A'. Can you explain this answer?
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