The primary use for computers today is to connect to the internet. The internet is certainly a better place than worse. Information on anything imaginable can be found at lightening fast speeds.  Hard to find products can be found online rather than calling or traveling to multiple  stores. There are many things that can go wrong with a PC.  There was a time when a Ctrl/Alt/Delete would usually solve the problem.  Nowadays, a computer is so much more than a tool to figure out how to pin-point and blow-up something efficiently and effectively.
					Installing or uninstalling programs or software that came with your scanner, printer, web-cam or that wireless keyboard and mouse.  Scan disks, defrags, emptying the recycle bin, disk clean ups and obsolete installation files.  Some believe the proper way to shut off the computer is the same way they turned it on, the power button.  Computers are used for everything from work to play. Ask someone to describe their job or what they did before they had a computer, chances are they can't remember and if they're under 20 they never knew life without them.

Viruses, Spy-ware, Trojans, Worms, Etc...

There is always something in the news about a new virus.  One which does this to that, sends whatever to whomever, targets and deletes something and one that targets some company or university.

 Spy-ware is out of control as well and you have to take steps protecting your computer from what could possibly be worse than a virus.  There are many free programs available as there are for purchase.  About the only difference between them is running automatically in the background or starting manually when you want.

 Spybot & Ad-Aware Personal are both outstanding as far a free goes.  You could pay for a program, but viruses and spy-ware are something every computer that should know how to attack.  When used one after the other they do a fantastic job in clearing out the junk. Its recommended you run ad-aware first, then run Spybot.