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Comprehensive Overview of Information and Communication Technology (ICT)

This guide explains the fundamental concepts of Information and Communication Technology (ICT), covering its definition, components, and technologies. Learn about how data is processed and communicated, the significance of the Internet, and the evolution of ICT from early systems to modern applications. Also included are insights into advanced communications and educational training resources provided by Justetc Technologies. Whether you're a student or a professional in the field, this comprehensive resource will enhance your understanding of ICT's role in today's world.

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Comprehensive Overview of Information and Communication Technology (ICT)

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  1. Sayed Ahmed Computer Engineering, BUET MSc. Computer Science, Canada President/Chief Architect/Lead Developer Justetc (Just et cetera) Technologies http://www.justetc.net http://sayed.justetc.net sayed@justetc.net Information and Communication Technology: Introductory Concept

  2. Address • Canada Address • Trudelle Street • Toronto, Ontario, Canada • Contact • Sayed Ahmed • sayed@justetc.com • Bangladesh Address • Justetc Computers • Habib Complex (2nd Floor) • Shimultuly, Gazipur, Dhaka • Bangladesh • Contact • Rafiqul Islam • rafik@justetc.com • 01942747702 Just Etc Technologies, sayed@justetc.net

  3. Training and Education by Justetc • Training and Education in Bangla: Bangla.SaLearningSchool.com • Training and Education in English: www.SaLearningSchool.com • Training and Education in English: English.SaLearningSchool.com • Ask a question and get answers : Ask.JustEtc.net • Offline IT Training: University.JustEtc.net

  4. Information Technology • What is Information Technology • Concerned with • Collection, dissemination, processing, and storage of • Information esp. with the use of computers • Design, development, implementation, support, management of • Information Systems – computer based

  5. Communication Technology • Technologies related to data communications • Data Communication • Carry data from one place to another or one device to another • Examples • Telephone • Mobile • Internet

  6. IT and CT (Communications Tech) • IT + CT = ICT • IT in a broader term includes both • IT • CT • IT now also refers to ICT

  7. Types of ICT • Computing and Information Systems • Electronic Data Processing, Artificial Intelligence, Expert Systems • Broadcasting • Radio and Television • Telecommunications • Fixed line telephones, mobile phones • The Internet • Uses telecommunications infrastructure

  8. Progress of ICT Adoption • Basic Communication • Fixed phone, mobile, fax, radio, television • Basic Information Technology • Uses basic software and printers • Used in basic everyday needs • Advanced Communications • Email, Internet Browsing, Video Conferencing, ecommerce, VOIP • Advanced IT • Advanced software are used for complex needs • DBMS, Information Systems, Enterprise Resource Planning, Inventory Management

  9. Elements of ICT • Computer • Central tool • Radio • Television • Internet

  10. Radio • Radio: Sound wave to Electro Magnetic Wave • FM broad cast: 87.5 to 108.0 MHz • AM broadcast • Microwave broadcast • http://ptolemy.eecs.berkeley.edu/eecs20/sidebars/radio/spectrum.gif

  11. Television • Television • NTSC • PAL • Used in Bangladesh • SECAM • HDTV

  12. What is the Internet? • The Internet • The largest computer network in the world • Consists of many interconnected network of • Small sizes • Large sizes • Has more than 100 Crore computers • Internet History • ARPANET • 1969: USA military interconnected four university computers in a network called ARPANET • 1982: TCP/IP got invented. In 1983, ARPANET started to use TCP/IP protocol

  13. Internet • Expansion of the Internet • 1969 to 1983: • Experimental stage • Slow expansion • Covered 20 countries • Around 200 computers got connected • 80s: • NSFNET was established on 1986 • Active research started on the Internet Technologies • ARPANET was closed on 1990, and got named as the Internet • ISPs were created on 1989 • So everyone got the opportunity to get connected to the Internet • ISOC (Internet Society) was established on 1992 • Now, you can connect to the Internet using cell phones

  14. Thanks Post your questions at http://ask.justetc.net

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