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प्रश्न
Explain briefly two commonly used applications of the ‘Internet’.
उत्तर
Applications of the Internet:
1. E-mail: It allows the exchange of text or graphic material. One can write a letter and send it to the other person (recipient) through an internet service provider (ISP). The ISP works like the dispatching and receiving post office.
2. File transfer: A program known as the file transfer program (FTP) allows the transfer of files or software from one computer to the other computer connected to the Internet.
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संबंधित प्रश्न
Draw a block diagram of generalized communication system.
Ionosphere mainly consists of _______.
Draw a neat, labelled block diagram for a generalised communication system.
Name the essential components of a communication system.
For efficient radiation and reception of signal with wavelength λ, the transmitting antennas would have length comparable to ______.
(A)`lambda` of frequency used
(B)`lambda/2` of frequency used
(C )`lambda/3` of frequency used
(D)`lambda/4` of frequency used
Write the functions of each of the following in communication system : Channel
Distinguish between a transducer and a repeater.
Explain, with the help of a suitable diagram, the space wave mode of propagation. Give two examples in communication systems where this mode is used. What is the frequency range of these waves? Give reason for using this range of frequency.
Mention the function of any two of the following used
(i) Transducer
(ii) Repeater
(iii) Transmitter
(iv) Bandpass Filter
Explain the function of a repeater in a communication system.
