Nowadays, it is usually located in front of the computer. Pushing it would start the computer. The monitor is the video display you will be looking at, most of the time, to evaluate your work, find out whether the assignments are being carried out satisfactorily. A monitor is largely controlled by some pieces of hardware inside of the computer. But the monitor itself is mainly used to display your work in a graphical setting you can easily interpret.
Monitors come different sizes.
The most important size of the monitor is measured diagonally on the screen and is given in inches. Monitors are also characterized by the flatness of their screen. The flatter and the wider screens are usually the better. To turn the computer on, find its Power button and press it. Look at the computer's monitor.