COMPUTER HARDWARE
INPUT DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Optical mouse
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Keyboard
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Scanner
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None of the above
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Detailed explanation-1: -Which among the following is the most common device that accepts letters, numbers and command from a user? Explanation: A computer keyboard is an input device that allows a person to enter letters, numbers, and other symbols (these are called characters in a keyboard) into a computer.
Detailed explanation-2: -Keyboard: Keyboard is one of the primary input devices used to input data and commands. It has function keys, control keys, arrow keys, a keypad, and the keyboard itself with the letters, numbers, and commands.
Detailed explanation-3: -The most common input devices are the keyboard, mouse, and touch screen.
Detailed explanation-4: -Computers use binary codes to store and work with letters, numbers, pictures, and sound. A binary digit is a 0 or a 1, often called a bit, from binary digit. One unit of data based on the binary number system.