COMPUTER NETWORKS TANANEBAUM PPT , Lecture notes of Computer Networks

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Introduction

Chapter 1

Uses of Computer Networks

• (^) Business Applications
• (^) Home Applications
• (^) Mobile Users
• (^) Social Issues

Business Applications of Networks (2)

The client-server model involves requests and replies.

Home Network Applications

• (^) Access to remote information
• (^) Person-to-person communication
• (^) Interactive entertainment
• (^) Electronic commerce

Home Network Applications (3)

Some forms of e-commerce.

Mobile Network Users

Combinations of wireless networks and mobile computing.

Broadcast Networks

Types of transmission technology

• (^) Broadcast links
• (^) Point-to-point links

Broadcast Networks (2)

Classification of interconnected processors by scale.

Metropolitan Area Networks

A metropolitan area network based on cable TV.

Wide Area Networks

Relation between hosts on LANs and the subnet.

Wireless Networks

Categories of wireless networks:

• (^) System interconnection
• (^) Wireless LANs
• (^) Wireless WANs

Wireless Networks (2)

(a) Bluetooth configuration (b) Wireless LAN

Home Network Categories

• (^) Computers (desktop PC, PDA, shared peripherals
• (^) Entertainment (TV, DVD, VCR, camera, stereo, MP3)
• (^) Telecomm (telephone, cell phone, intercom, fax)
• (^) Appliances (microwave, fridge, clock, furnace, airco)
• (^) Telemetry (utility meter, burglar alarm, babycam).

Network Software

• (^) Protocol Hierarchies
• (^) Design Issues for the Layers
• (^) Connection-Oriented and Connectionless Services
• (^) Service Primitives
• (^) The Relationship of Services to Protocols