what does information technology comprise of? what is its future scope?

Answer 1

"Information technology (IT)[1] is a broad subject concerned with technology and other aspects of managing and processing information, especially in large organizations." wikipedia

there is a lot of excellent information available on the internet. I have provided a link to some sources for you:
http://search.yahoo.com/search?search=information+technology&ei=UTF-8&fr=ks-ans&search_type=http%3A%2F%2Frds.yahoo.com%2F_ylt%3DAnr2xCpuE.zigCFMS4HHKeEazKIX%2FSIG%3D111gjvvgj%2F*-http%3A%2F%2Fsearch.yahoo.com%2Fsearch&p=information+technology
http://www.google.com/search?hl=en&q=information+technology&btnG=Google+Search