COMPUTER HARDWARE COMPONENTS FUNCTIONS
COMPUTER OUTPUT DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When there isn’t enough space on a desk
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When a barcode needs to be scanned
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When answers to a test need to be input
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None of the above
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Detailed explanation-1: -Trackballs are a great option if you have limited desk space, and they can be a more ergonomic option because they don’t rely on movements from your wrist or arm. When shopping for the best trackball mouse for your needs, it’s important to find an option that will be comfortable for your hand size.
Detailed explanation-2: -A trackball is a computer cursor control device used in many laptop computer keyboards and older versions of computer mice. The device comprises a ball held by a socket containing sensors to detect a rotation of the ball about two axes–like an upside-down mouse with a ball in it.
Detailed explanation-3: -Advantages of a Trackball Trackballs use less space, allow for precise movement, and come with better support for your wrists. As a trackball is ambidextrous and doesn’t need to move across your desk, it provides for greater comfort during extended pointer use.
Detailed explanation-4: -The touchpad on a laptop does the same job as the mouse on a desktop PC. It is sometimes also called a trackpad. The touchpad is used to control the mouse pointer, also known as the cursor.