The Windows Task Manager is a utility that allows you to check the performance of your PC. It is a little technical to explain how it can help you but it's worth perseving to learn about it. Below is a wikipedia entry for the Task Manager and also a youtube video that runs for around ten minutes.
Our own written entry on the Windows Task Manager follow this link:
If you prefer to read how 'stuff' works this wikipedia page will tell you all about Bookmarks; what they are, how they work and why they are incredibly useful.
IMPORTANT NOTE: It doesn't matter what type of computer, tablet, smartphone you use. Wikipedia works in the similar way across ALL operating systems.
This youtube video explains how the Windows Task Manager Works.
YouTube & Advertising
This is a Google owned business and they make their money through advertising. When some videos start to play there may be an advert appearing. Usually (not always) there is an option to click the advert off after around five seconds. Once this option is clicked the video you want to watch will continue to play.