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999			_c313 _d313
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008			190831b ||||| |||| 00| 0 eng d
020			_a9789387472297
082			_a004 _bRAJ
100			_aRajaraman,  V. _9832
245			_aIntroduction to information technology
250			_a3rd
260			_bPHI Learning Pvt. Ltd. _aNew Delhi _c2018
300			_axiv, 382 p.
365			_aINR _b395.00
504			_aTable of Content Preface 1. Data and Information 2. Acquisition of Numbers 3. Acquiring Text and Image Data 4. Acquiring Audio Data 5. Acquisition of Video 6. Data Storage 7. Central Processing Unit 8. Computer Networks 9. Output Devices 10. Computer Software 11. Data Organization 12. Processing Numerical Data 13. Processing and Displaying Textual Data 14. Processing Multimedia Data 15. Some Internet Applications 16. Business Information Systems 17. Electronic Commerce 18. Societal Impacts of Information Technology Suggested Further Reading • Index
520			_aDescription: This textbook is designed to teach a first course in Information Technology (IT) to all undergraduate students. In view of the all-pervasive nature of IT in today’s world a decision has been taken by many universities to introduce IT as a compulsory core course to all Bachelor’s degree students regardless of their specialisation. This book is intended for such a course. The approach taken in this book is to emphasize the fundamental “Science” of Information Technology rather than a cook book of skills. Skills can be learnt easily by practice with a computer and by using instructions given in simple web lessons that have been cited in the References. The book defines Information Technology as the technology that is used to acquire, store, organize, process and disseminate processed data, namely, information. The unique aspect of the book is to examine processing all types of data: numbers, text, images, audio and video data. As IT is a rapidly changing field, we have taken the approach to emphasize reasonably stable, fundamental concepts on which the technology is built. A unique feature of the book is the discussion of topics such as image, audio and video compression technologies from first principles. We have also described the latest technologies such as ‘e-wallets’ and ‘cloud computing’. The book is suitable for all Bachelor’s degree students in Science, Arts, Computer Applications, and Commerce. It is also useful for general reading to learn about IT and its latest trends. Those who are curious to know, the principles used to design jpg, mp3 and mpeg4 compression, the image formats—bmp, tiff, gif, png, and jpg, search engines, payment systems such as BHIM and Paytm, and cloud computing, to mention a few of the technologies discussed, will find this book useful.
650			_aInformation technology _9827
650			_aManagement information systems _9833
942			_2ddc _cBK