Nowadays computers all over the world can talk to each other. What is one of the special accessories essential for this purpose?a)Keyboardb)Modemc)Scannerd)FaxCorrect answer is option 'B'. Can you explain this answer?

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Nowadays computers all over the world can talk to each other. What is one of the special accessories essential for this purpose?

a)
Keyboard
b)
Modem
c)
Scanner
d)
Fax

Correct answer is option 'B'. Can you explain this answer?

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Nowadays computers all over the world can talk to each other. What is ...

A modem is a device or program that enables a computer to transmit data over, for example, telephone or cable lines. A Modem performs modulation and demodulation of the signals. Computer information is stored digitally, whereas information transmitted over telephone lines is transmitted in the form of analogue waves.

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Nowadays computers all over the world can talk to each other. What is one of the special accessories essential for this purpose?a)Keyboardb)Modemc)Scannerd)FaxCorrect answer is option 'B'. Can you explain this answer?

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