I suggest reading some popular proprietary books such as
I have a question.. what do u use computer for?
answering this question will determine which distribution is best for you..
u should begin with an easy-to-use distribution such as Linux Mint http://linuxmint.com/
Remember if u are a beginner (and of course u r..) u should use graphical tools to accomplish your tasks until u get accustomed to the command line but don't depend on one of them completely ..command will be difficult and different at the beginning ..using graphical tool will deprive u from many useful tools of the command line and you will lack troubleshooting skills ..so balance between them..
the first lesson what does GUI and CLI mean ?
google for the answer and I waiting for it?
I am expecting a question next time u login..so don't lose your chance of learning
read about live cds ..how to burn them ..ho to boot them ..what to to if one them doesn't work correctly
a comprehensive database of distributions is in the following website
your first homework is to find distributions that are suitable for beginners..download of them and try it
your second homework is to use the livecd of the distribution to find out your architecture .. feel free to ask but don't forget
We are not here to help you.We are here to help you help yourself.
the Chinese proverb says : Give a man a fish and you feed him for a day. Teach a man to fish and you feed him for a lifetime
by the way : I am not a linux guru nor a geek but Ilove linux very much and I want linux to be easy and understandable for every one
again feel free to ask..
waiting for your question and hardware info..