Open multiple programs at the same time

Suppose you have to make an assignment for a school project and you want to copy some notes from your browser then it will be very difficult to jump between windows like opening browser and coping then minimizing it then opening the word processor, then pasting the content in the word processor. But you can run your browser and the word processor at the same time on the same screen. Suppose you have two windows open (Fig: 2.12).

Click on one window and press Start + Right Arrow(to shift your window to the right) or Start + Left Arrow(to shift your window to the left) then click the window which you want to open (Fig: 2.13).