Computer Hardware Basics Quiz

Hardware refers to all the physical components of a computer system, including the devices connected to it. It is essential for creating and using a computer, as well as for running software.

An input device enables the user to send data or information to the computer, which is then processed by the Central Processing Unit (CPU) to produce the output.

A mouse is a hand-held input device used to move the cursor across the screen. It is designed to be used on a flat surface, with left and right buttons and a scroll wheel. It was invented by Douglas C. Engelbart in 1963.

<p>A light pen looks like a pen and has a light-sensitive detector at the tip. It detects the location of an object on the screen and sends signals to the CPU for processing.</p> Signup and view all the answers

<p>A barcode reader is an optical scanner that can read printed barcodes, decode the data contained in the barcode, and send the data to a computer for further processing.</p> Signup and view all the answers