Introduction To Information Technology

Preface

1. Data and Information

2. Acquisition of Numbers and Textual Data

3. Acquiring Graphical 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

References

Index

 

This textbook is designed for a first course in Information Technology (IT), offered as core course for all undergraduate university students. It will also benefit students preparing for DOEACC (O level), polytechnic students, and professional courses such as CA. As IT is a rapidly advancing technology, the main objective of this book is to emphasize reasonably stable fundamental concepts on which this technology is built.
The book is broadly organized into three parts. The first part describes the hardware devices used for acquisition of numerical, graphical, audio and video data and their representation in binary form. The second part describes the methods of storing, processing and disseminating data. The final part describes both the systems and application software. Applications include word processors, spreadsheets, multimedia processing, some uses of the Internet, business processes and e-commerce. The concluding chapter presents a discussion on social impacts of information services and career opportunities in the field of IT.

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