Question : Which of the following allows computers to transfer data using a telephone line?
Option 1: Keyboard
Option 2: CPU
Option 3: Modem
Option 4: Printer
Correct Answer: Modem
Solution : The correct option is Modem.
A Modem (short for "modulator-demodulator") is a device that converts digital data from a computer into analogue signals for transmission over a telephone line and demodulates incoming analogue signals back into digital data that the computer can comprehend.
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Question : Dot-Matrix is an example of which of the following?
Option 1: A software
Option 2: Scanner
Option 3: Printer
Option 4: Keyboard
Question : In a computer system, which device is functionally opposite of a keyboard?
Option 1: Trackball
Option 2: Joystick
Option 3: Mouse
Question : Which one of the following is not a line demarcation between two countries?
Option 1: International Date Line
Option 2: MacMohan Line
Option 3: Radcliffe Line
Option 4: Durand Line
Question : Which of the following is the method of heat transfer?
Option 1: Convection
Option 2: Evaporation
Option 3: Revolution
Option 4: Thermal Expansion
Question : What is the brain of the computer called?
Option 1: CPU
Option 2: Motherboard
Option 3: HDD
Option 4: Hardware
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