What are the differences between local area network and wide area network?

What is local area nework?  What is storage area network?  Application local area network?  How do you use wide area network?  What is meant by Local area network?  How do you create a local area network?  What is the function of an area network?  What is the meaning of wide area network?  How local area network works in a computer?  What is a campus area network and who uses them?  Purpose of local area networl in computing network?  Why is it good to have a local transport in yor area?  Is internet a local area network or wide area network?  Each device which is linked to a local are network is?  What are the advantages and disadvantages of Wide Area Network?  Differences between a local area network and a wide area network?  What are the differences between local area net work and wide area net?  Give more differences between local area network and wide area network?  What are the diffrence between personal computer and local area network?  What are the difference between local area network and wide area network?