Suleyman Demirel University Summer 2012 EXPLORATION 1 CHAPTER

Suleyman Demirel University, Summer 2012 EXPLORATION 1 CHAPTER 2 Communicating over the network By Zhamanov Azamat

Suleyman Demirel University, Summer 2012 Introduction Almost all of the people makes communication between each other

Suleyman Demirel University, Summer 2012 What types of communications do we have?

Suleyman Demirel University, Summer 2012 Types of Communications 1. 2. 3. 4. 5. 6. Speaking Sign language Pigeon post service Post service Telephony network or Mobile network Computer Networks

Suleyman Demirel University, Summer 2012 Speaking Hello Hi

Suleyman Demirel University, Summer 2012 Sign Language

Suleyman Demirel University, Summer 2012 Pigeon Post Service

Suleyman Demirel University, Summer 2012 Post Service

Suleyman Demirel University, Summer 2012 Telephony network or Mobile network

Suleyman Demirel University, Summer 2012 Computer Networks

Suleyman Demirel University, Summer 2012 Example of Computer Networks communication process

Suleyman Demirel University, Summer 2012 Client want to upload(send) data into server

Suleyman Demirel University, Summer 2012 Question What kind of problems can occur if client will send data in one stream(by using one packet)?

Suleyman Demirel University, Summer 2012 1 st problem Channel will be busy only by sending data from one client to server and no other transmissions can be done at that time

Suleyman Demirel University, Summer 2012 2 nd problem If collision will occur in the network wile sending one packet with size of 100 MB, client have to resend that packet again

Suleyman Demirel University, Summer 2012 Question How to fix this problem?

Suleyman Demirel University, Summer 2012 Answer We have to divide data stream into small pieces of information which are called segments and this process is called segmentation

Suleyman Demirel University, Summer 2012 Dividing data into small pieces

Suleyman Demirel University, Summer 2012 Segmentation in process

Suleyman Demirel University, Summer 2012 Question What will happen if two clients will try to send data to server simultaneously?

Suleyman Demirel University, Summer 2012 Answer Segments will make collision in the network and will be dropped(deleted)

Suleyman Demirel University, Summer 2012 Question How to reduce this problem?

Suleyman Demirel University, Summer 2012 Multiplexing A process where multiple digital data streams are combined into one signal

Suleyman Demirel University, Summer 2012 Labeling process

Suleyman Demirel University, Summer 2012 Components of the Network • Devices • Media • Services

Suleyman Demirel University, Summer 2012 End Devices • PC(Computer) • Vo. IP Phone • Network Printer • Security camera

Suleyman Demirel University, Summer 2012 Intermediary Devices • Hub • Switch • Router

Suleyman Demirel University, Summer 2012 Media • Copper • Metallic wire • Fiber Optics • Glass or Plastic fibers • Wireless transmission

Suleyman Demirel University, Summer 2012 Services Different types of applications(programs)

Suleyman Demirel University, Summer 2012 Types of Computer Networks • PAN(Personal Area Network) • LAN(Local Area Network) • WAN(Wide Area Network) • Internet(Global mesh of interconnected networks) • Intranet(Private connections of LANs and WANs)

Suleyman Demirel University, Summer 2012 PAN Version 1 – 1 Mb/s Version 2 - 3 Mb/s Version 3 - 24 Mb/s

Suleyman Demirel University, Summer 2012 LAN(Local Area Network) • Single Geographical Area • Under one Administrative Control

Suleyman Demirel University, Summer 2012 WAN(Wide Area Network) Interconnection two or more LANs or MANs in long connection With using Layer 3 devices

Suleyman Demirel University, Summer 2012 Internet Global Interconnection of Networking and Internetworking Devices Internet doesn’t have single owner

Suleyman Demirel University, Summer 2012 Network Representations in Symbols

Suleyman Demirel University, Summer 2012 Q/A