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Digital Communication – CSF1073Lecture No. 1

Shahbaz Ahmad

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Course Contents

• Introduction to Digital Communication• Role of Digital Devices in Fashion• Internet Devices• Networks• Types of Networks and Topologies• Fundamentals World Wide Web• Fundamentals of Software Systems

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Text Book

• Discovering Computers 2010,By Gary B. Shelly and Vermaat

• Network+ Guide to Networks 5th Edition 2010By Tamara Dean

• LMS URL– http://121.52.153.99/– And goto your class

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Class Project

• Individual • A complete website developed in WordPress

Discovering Computers 2010: Living in a Digital World Chapter 9

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Marks Division

• Lab– Class Project with documentation 40 %– Daily Evaluation 40% – Lab Exam 20%

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Communications

• Computer communications describes a process in which two or more computers or devices transfer data, instructions, and information

Sending deviceCommunications channel/mediu

mReceiving device

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Communications

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Uses of Computer Communications

Blogs Chat rooms E-mail Fax

FTP Instant messaging Internet Newsgroups

RSS Video conferencing VoIP Web

Web 2.0 Web folders Wikis

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Uses of Computer Communications

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Uses of Computer Communications

• Users can send and receive wireless messages using wireless messaging services

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Uses of Computer Communications

Text messaging allows users to send and receive short text messages on a phone or other mobile device or computer

Picture messaging allows users to send pictures and sound files

Video messaging allows users to send short video clips

Wireless instant messaging allows wireless users to exchange real-time messages with one or more other users

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Uses of Computer Communications

• Wireless Internet access points allow people to connect wirelessly to the Internet from home, work, school, and in many public locations

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Internet Access Point

• A hot spot is a wireless network that provides Internet connections to mobile computers and devices.

• Hot spot technologies are Wi-Fi, WiMAX, and Bluetooth.

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Internet Access Point

• A mobile wireless network usually covers most major cities and airports.

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Questions