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Information Technology and its Applications in Business is designed to serve as a textbook for the second year B Com (Hons and Gen) students of the University of Calcutta (CU). It covers those aspects of computer science and information technology (IT) which apply to the study of commerce subjects. Starting with an overview of IT and its relevance to business, the book delves into number systems and representation of data in a computing system, fundamentals of computers, data organization and database management system, data communication and computer networks, Internet and Internet security. It also provides an exhaustive practical section covering several important topics. Written in a lucid style, the book provides numerous examples, self-explanatory figures and diagrams and numerous chapter-end exercises. Key Features • Meets the requirements of Calcutta University’s B Com course on ‘Information Technology and Its Applications in Business’ completely • Incorporates numerous well-labelled figures, images and screenshots throughout the text to elucidate the content • Includes a separate practical section comprising lab exercises on Microsoft Word, Excel, PowerPoint, Access and the financial accounting package, Tally • Includes various chapter-end exercises that follow the CU question paper pattern as well as solved questions from previous years’ plus 2017 university examinations Table of Contents 1. Information Technology and Business—An Overview 2. Number System and Representation of Data in Computing System 3. Fundamentals of Computers 4. Data Organization and Database Management System 5. Data Communication and Computer Networks 6. The Internet 7. Security Issues Lab Exercises 1. MS-Word 2007 2. MS-Excel 2007 3. MS-PowerPoint 2007 4. MS-Access 2007 5. Tally 9