What is the full meaning of modem?
What is the full meaning of modem?
modulator-demodulatorModem / Full name
The word “modem” stands for “modulator-demodulator”. A modem’s purpose is to convert digital information to analog signals (modulation), and to convert analog signals back into useful digital information (demodulation).
What is the function modem?
Modem is short for “Modulator-Demodulator.” It is a hardware component that allows a computer or another device, such as a router or switch, to connect to the Internet. It converts or “modulates” an analog signal from a telephone or cable wire to digital data (1s and 0s) that a computer can recognize.
What is a modem class 10?
Answer: MODEM stands for MOdulator/DEModulator. It is a hardware device that enables a computer to send and receive information over telephone lines by converting the digital data used by your computer into an analog signal used on telephone lines and the converting back once received on the other end.
Why is it called modem?
A modem is a network device that both modulates and demodulates analog carrier signals (called sine waves) for encoding and decoding digital information for processing. Modems accomplish both of these tasks simultaneously and, for this reason, the term modem is a combination of “modulate” and “demodulate.”
What is modem example?
A modem or broadband modem is a hardware device that connects a computer or router to a broadband network. For example, a cable modem and DSL modem are two examples of these types of Modems. Tip. Today, a “modem” is most often used to describe a broadband modem.
Which of following is the best definition of a modem?
Definition of modem (Entry 1 of 2) : a device that converts signals produced by one type of device (such as a computer) to a form compatible with another (such as a telephone) and that is used especially to transmit and receive information between computers via landlines. modem.
What are the two main types of modem?
Types of Modems
- Digital subscriber Line. It provides high speed internet connection through telephone lines.
- Cable modem. Cable Modem is a device that allows high-speed data access via a cable TV (CATV) network.
- Satellite modem. It is a device that provides internet connection through satellite dishes.
What are the two types of modems explain them?
There are three types of modems: cable, digital subscriber line (DSL) and dial-up. A cable modem uses coaxial cables that connect to the back of the modem and the bolt-like outlet in your wall or on your cable box. This type of modem delivers high speed internet to your device.
What is a modem class 12?
Modem (Modulator/Demodulator) Modem is a device that converts digital signal to analog signal (modulator) at the sender’s site and converts back analog signal to digital signal (demodulator) at the receiver’s end, in order to make communication possible via telephone lines.
What do you mean by modem explain its types Class 12th?
Answer. A modem is a device that modulates outgoing digital signals from a computer or other digital devices to analog signals. It also demodulates the incoming analog signals and converts them to digital signals for the digital device.
What are the two main functions of a modem?
The word “modem” is derived from the term “modulator-demodulator.” The essential functions of a modem are to modulate an analog carrier signal to carry digital information; and to demodulate a similar signal so as to decode the digital information from the analog carrier signal.
What’s another word for modem?
In this page you can discover 17 synonyms, antonyms, idiomatic expressions, and related words for modem, like: dongle, router, ethernet, cable modem, dsl, adapter, dial-up, usb, adsl, controllerless and irda.
What are the two types of modems explain?
What is a modem PDF?
A modem is a communication device that converts binary signal into analog acoustic signals for transmission over telephone lines and converts these acoustics signals back into binary form at the receiving end. Conversion to analog signal is known as modulation; conversion back to binary signal is known as demodulation.
What is modem explain with diagram?
Modem is an abbreviation for Modulator – Demodulator. Modems are used for data transfer from one computer network to another computer network through telephone lines. The computer network works in digital mode, while analog technology is used for carrying messages across phone lines.
What do you mean by modem explain its types shaala?
(3) Modem is modulator/demodulator. Modem is used to connect computer to internet. Modems convert digital data to analog data and vice-a-versa. (4) They have two advantages: (a) Modem allows higher speed of transmission on any given analog line.
What are the advantages of modem?
Advantages of the modem:
- More useful in connecting LAN with the internet.
- Speed depends on the cost.
- Slow speed when compared to the hub.
- A limited number of a system can be connected.
- A modem is most probably widely used in data communication roadway.
- A modem converts that the digital signal into an analog signal.
Where are modems used?
1. A modem or broadband modem is a hardware device that connects a computer or router to a broadband network. For example, a cable modem and DSL modem are two examples of these types of Modems. Today, a “modem” is most often used to describe a broadband modem.
What is the opposite of modem?
The word modem typically refers to a device used to send electronic communications via telephone lines. There are no categorical antonyms for this word.
How does TDD/TTY work?
Introduced in 1964, a keyboard terminal with printer or screen output contains a modem for transmission over a standard analog phone line. If a recipient does not have a corresponding terminal, TDD/TTY users dial a relay service composed of operators who receive the typed messages, call the recipients and speak the messages to them.
What does TTY stand for in communication?
TTY and TDD Definition A TTY is a device like a typewriter that has a small readout. It is also called a Telecommunication Device for the Deaf (TDD) but that name has been devised by the hearing community and is not accepted by Deaf people, the actual users of TTY technology. They still prefer the term, TTY.
What is TTY (telecommunication device for the Deaf)?
It is also called a Telecommunication Device for the Deaf (TDD) but that name has been devised by the hearing community and is not accepted by Deaf people, the actual users of TTY technology. They still prefer the term, TTY. A TTY can be used to send text over the phone.
How many people use TTYs?
Whether you call them TTYs, TDDs, textphones or minicoms, these devices now have four million U.S. users. Here’s how TTY works.