Book excerpt: The Revolution In Business Caused By The Internet And Its Related Technologies Demonstrates That Information Systems And Information Technology Are Essential Ingredients For The Success Of Internet Worked Business Enterprises. In The Last Two Decades, Information Technology Has Emerged In The World Affecting Our Personal, Social And Public Life And Has Made A Significant Impact On The Quality Of Life. The Field Of Information Technology Is Like A Sea Where Nothing Can T Be Obtained Sitting At Shore. More Deep Is Your Dive, More Pearls You Get. Similarly To Cope With The Rapidly Changing Technology, It Necessary To Be In Continuous Touch Of It. It Handles Data And Information Represented In Digital, Text, Image, Graphics Or Voice Media And Deals With Communication, Storage, Processing And Printing Or Exhibition In The Manager And Kind As Desired By The Users.This Book Explain In Brief The Principles And Practices Of Computers In Management Which Is The Basis For Conducting Any Business. It Further Explains All Concepts Which Are Used In Information Systems To Make Them More Effective. It Then Deals With Technology Hardware, Software, Database And So On. It Emphasizes The Role Of Decision Support Systems In Computer Fundamentals. The Text Is Further Is Enriched With Glossary, Review Question Etc.In General, We Have Taken Care Not To Disturb The Main Theme Of This Subject. This Book Specially Has Been Designed For M.B.A. Examinations And Other Professional Courses. We Hope That The Edition Of This Book Would Prove More Useful To The Students And The Teachers Of The Subject.