Apps+and+Operating+Systems


 * Operating Systems **

An operating system (OS) is a set of that a computer runs all the time it is switched on.

An OS performs many tasks, but we can think of it as the program that gets the computer “up and running” and makes it work and look the way it does.

Examples of operating systems on desktop computers include Microsoft Windows, Apple MacOS and Linux.


 * Task 1**



The word “app” is short for application. An application is a computer program that enables the computer to do a useful job.
 * Apps **

Complete the questions below and discuss the differences in price for a desktop application and a smartphone app. Why might their be a difference?
 * Task 2**



Watch the video below looking at how an App developer works out the cost of each application:

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