MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -Keyboard is the most common and very popular input device which helps to input data to the computer. The layout of the keyboard is like that of traditional typewriter, although there are some additional keys provided for performing additional functions.

Detailed explanation-2: -The most common input devices are the keyboard, mouse, and touch screen.

Detailed explanation-3: -Because of: Familiarity: Everyone has more or less learned to use it and a lot of users don’t even need to take a look at at individual keys to type. Although not physically, it’s present and has the same layout across devices. Usefulness: You can perform an incredible HUGE variety of task just with a keyboard.

Detailed explanation-4: -Explanation: Keyboard is the most commonly used input device.

Detailed explanation-5: -Perhaps the first input device was the simple electronic switch ( similar to a light switch ) which turned bits on or off. There were hundreds or even thousands of these switches on larger computers. It used to take a team of programmers hours or even days to set up a computer to perform a single calculation.