Hello everyone ,I'm new here.I did not know where to write ,so forgive me .Is there someone who is willing to help me about hardware,software,programming ,network ... I want to learn these things  well ,but right now I know very very little (for example: I don't know what is GUI ) so it is to hard for me to search all this stuffs on the internet... You can TELL me from I should start or GIVE me your email so that we can talk .. Sorry for my bad english ,PLEASE HELP ME !!What you're asking for is someone to teach you everything about computers and that's simply not realistic on a site like this. I strongly suggest you start at the library.Nothing wrong with your English...but as Allan stated you have to start somewhere with the basics because your not gonna get it in a Forum Post....

Feel free to stop BACK if you get stuck and Welcome Aboard.Glamdring,
When you come to CH, always look over the main page. Lots of tips abound.
On the right side of the main page you will see:
Visitor Favorites
Click on the tips just below. it.Thanks GUYS ,do you have some e books from i should start ? I would be very thankful... Save money by downloading books in PDF  type. Such a file can be read on the screen and can be printed into a nice book on almost any printer.
Here are a few for Computer New People.

http://www.computingbook.org/FullText.pdf

http://www.paolocoletti.it/books/basiccomputer.pdf

https://abiiid.files.wordpress.com/2010/12/pc-hardware-a-beginners-guide.pdf

Here is a list of more...
http://bookboon.com/en/microsoft-office-excel-ebook

That will keep you busy.   Thank you,I appreciate your help