<span>Operating System is the software that gives the computer instructions on how to run applications. It is considered the most important program that runs on a computer because it manages all the hardware and software on it. It also controls the display/keyboard. </span>
Mostly teenagers and young adults (ages 14-21) text the most.
I think that people have lost their jobs because of an increase of computers. Also, a<span>utomobiles can crash and injure and kill people. </span><span>Ships can be sunk. </span><span>Poorly constructed or maintained machinery can harm the workers. </span><span>The telegraph put the pony express out of business. </span><span>Many factories pollute the water and air. </span>