SlideShare a Scribd company logo
1 of 14
CHAPTER 3: COMPUTER
NETWORKS AND
COMMUNICATIONS
Basic Concepts of Computer Networks
Definition of Computer Networks
A computer network is a                 Devices – printer,
                                            scanner
collection of computers
                                     Communication devices
and devices                           NIC           Router
connected together via                Hub             ??
                                       ??
communication devices
                                Transmission Media
and transmission media.
For examples it may
                          Physical
connect computers,
                                                  Infrared
printers and scanners.                           Radiowave
                                                  Satellite
Definition of Communication
Communication describes a process in which two or
more computer or devices transfer data, instructions
and information.
The Importance/Advantage of
           Computer Networks
s   Sharing of devices such as printer and scanner
a   Sharing of program/software
a   Sharing of files
,   Sharing of data
a   Sharing of information
,   Sharing of single high-speed internet connection
d   Can access server centered database
B   Better communication using internet services such
    as email, mailing list and Internet Relat Chat (IRC)
Types of Computer Networks
                         A local area network is a network that connects
Local Area Network (LAN) computers and device in a limited geographical area
                         such as a home, school computer laboratory, office
                         building
A metropolitan area network (MAN) is a high speed
Metropolitan Area   network that connects local area networks in a
 Network (MAN)      metropolitan area such as city or town and handles bulk
                    of communication activity across the region

                    A MAN typically includes one or more LAN but covers a
                    smaller geographic area than a WAN
A wide area network is a network that covers a large
Wide Area Network   geographical area such country or the world
      (WAN)
                    WAN combines many types of media such as telephone
                    lines, cables and radio wave. A WAN can be one large
                    network or can consist of two or more LANs connected
                    together

                    The internet is the worlds largest WAN
Differentiate between the types of
           Computer Networks
  Different       LAN               MAN               WAN
    Cost        Low optic           High             Higher

Network Size      Small            Larger            Largest

   Speed         Fastest           Slower            Slowest

Transmission   Twisted-pair      Twisted-pair       Fiber optic
   Media                      Fibre-optic cables   Radio wave
                                                     Satellite
 Number of       Smallest           Large            Largest
 Computers
Network Architecture
   Network architecture is the overall design of a computer
    network that describes how a computer network is configured
    and what strategies are being used.
   It is mainly focuses on the function of the networks.
   It is also known as network model or network design.
   Two main network architecture:
A server is a computer

                         that provides services
                         to clients and controls
                         access to hardware,
                         software and other
                         resources




A client is a computer
that request services
from a server computer
On a client/server network, one computer act as a server
Client/Server   that provides services and the other computers (client) on
                the network request services from the server.

                A server is a computer that controls access to the
                hardware, software and other resources on the network
                and provides a centralized storage area for program.

                A client is a computer that request services from a server
                computer.
                Peer-to-peer is a simple, inexpensive network that
Peer-to-Peer    typically connects fewer than 10 computers. All computers
                in the network have equal capabilities to use the resources
                (hardware, software, data and file) available on the
                network. With peer-to-peer networks, there is no central
                server.
The Differences between Client/Server
           and Peer-to-Peer

       Client/Server                         Peer-to-Peer
1)   Server has to control ability    1)   All computers have equal
     while client’s don’t                  ability
2)   Higher cabling cost              2)   Cheaper cabling cost
3)   It is used in small and large    3)   Normally used in small
     networks                              networks with less than 10
4)   Easy to manage                        computers
5)   Install software only in the     4)   Hard to manage
     server while the clients share   5)   Install software to every
     the software                          computer
6)   One powerful computer            6)   No server is needed
     acting as server

More Related Content

What's hot

Introduction to computer network
Introduction to computer networkIntroduction to computer network
Introduction to computer networkAshita Agrawal
 
Networking Devices
Networking DevicesNetworking Devices
Networking DevicesNitin16498
 
Computer network basic concepts
Computer network   basic conceptsComputer network   basic concepts
Computer network basic conceptsrahul kapoliya
 
Computer Networking concepts
Computer Networking conceptsComputer Networking concepts
Computer Networking conceptsMujeeb Ahmad
 
Networking fundamentals
Networking fundamentalsNetworking fundamentals
Networking fundamentalsjpprakash
 
Basic concepts of computer Networking
Basic concepts of computer NetworkingBasic concepts of computer Networking
Basic concepts of computer NetworkingHj Habib
 
Basics of Networks ,Advantages and Disadvantages
Basics of  Networks ,Advantages and DisadvantagesBasics of  Networks ,Advantages and Disadvantages
Basics of Networks ,Advantages and Disadvantagessabari Giri
 
Basic components of a computer network
Basic components of a computer  networkBasic components of a computer  network
Basic components of a computer networkEdison Francis
 
Types of computer network
Types of computer networkTypes of computer network
Types of computer networkAmit Shaw
 
Computer Networking.
Computer Networking.Computer Networking.
Computer Networking.mvenkat2016
 
Basics of computer networks
Basics of computer networksBasics of computer networks
Basics of computer networksRubal Sagwal
 
Networking Fundamentals
Networking  FundamentalsNetworking  Fundamentals
Networking FundamentalsManjit Chavda
 
basic networking
basic networkingbasic networking
basic networkingAnmol Bagga
 
Networking devices
Networking devicesNetworking devices
Networking devicesrupinderj
 
Introduction to network
Introduction to networkIntroduction to network
Introduction to networkDhani Ahmad
 
Networking Components
Networking ComponentsNetworking Components
Networking ComponentsAkNirojan
 

What's hot (20)

Networking ppt
Networking ppt Networking ppt
Networking ppt
 
Introduction to computer network
Introduction to computer networkIntroduction to computer network
Introduction to computer network
 
Networking Devices
Networking DevicesNetworking Devices
Networking Devices
 
Computer network basic concepts
Computer network   basic conceptsComputer network   basic concepts
Computer network basic concepts
 
NETWORK COMPONENTS
NETWORK COMPONENTSNETWORK COMPONENTS
NETWORK COMPONENTS
 
Computer Networking concepts
Computer Networking conceptsComputer Networking concepts
Computer Networking concepts
 
Networking fundamentals
Networking fundamentalsNetworking fundamentals
Networking fundamentals
 
Basic concepts of computer Networking
Basic concepts of computer NetworkingBasic concepts of computer Networking
Basic concepts of computer Networking
 
Basics of Networks ,Advantages and Disadvantages
Basics of  Networks ,Advantages and DisadvantagesBasics of  Networks ,Advantages and Disadvantages
Basics of Networks ,Advantages and Disadvantages
 
Basic components of a computer network
Basic components of a computer  networkBasic components of a computer  network
Basic components of a computer network
 
Networking
NetworkingNetworking
Networking
 
USES OF THE COMPUTER NETWORK
USES OF THE COMPUTER NETWORKUSES OF THE COMPUTER NETWORK
USES OF THE COMPUTER NETWORK
 
Types of computer network
Types of computer networkTypes of computer network
Types of computer network
 
Computer Networking.
Computer Networking.Computer Networking.
Computer Networking.
 
Basics of computer networks
Basics of computer networksBasics of computer networks
Basics of computer networks
 
Networking Fundamentals
Networking  FundamentalsNetworking  Fundamentals
Networking Fundamentals
 
basic networking
basic networkingbasic networking
basic networking
 
Networking devices
Networking devicesNetworking devices
Networking devices
 
Introduction to network
Introduction to networkIntroduction to network
Introduction to network
 
Networking Components
Networking ComponentsNetworking Components
Networking Components
 

Viewers also liked

Computer networking devices
Computer networking devicesComputer networking devices
Computer networking devicesRajesh Sadhukha
 
switching techniques in data communication and networking
switching techniques in data communication and networkingswitching techniques in data communication and networking
switching techniques in data communication and networkingHarshita Yadav
 
Basics of telecommunication and networking
Basics of telecommunication and networkingBasics of telecommunication and networking
Basics of telecommunication and networkingMilan Padariya
 
Network software n othr types of software
Network software n othr types of software Network software n othr types of software
Network software n othr types of software Dhani Ahmad
 
Networking Basics
Networking BasicsNetworking Basics
Networking BasicsCarlo Fonda
 
Network Hardware And Software
Network Hardware And SoftwareNetwork Hardware And Software
Network Hardware And SoftwareSteven Cahill
 
Basic networking in power point by suprabha
Basic networking in power point by suprabhaBasic networking in power point by suprabha
Basic networking in power point by suprabhaSuprabha Sahoo
 
1 introduction-to-computer-networking
1 introduction-to-computer-networking1 introduction-to-computer-networking
1 introduction-to-computer-networkingKhan Rahimeen
 
Ambient back scatter
Ambient back scatterAmbient back scatter
Ambient back scatterChe Tna
 
Domain name system presentation
Domain name system presentationDomain name system presentation
Domain name system presentationAnchit Dhingra
 
Computer hardware and networking components
Computer hardware and networking componentsComputer hardware and networking components
Computer hardware and networking componentsManpreet Singh Bedi
 
System and network administration network services
System and network administration network servicesSystem and network administration network services
System and network administration network servicesUc Man
 
Network administration and Management
Network administration and ManagementNetwork administration and Management
Network administration and ManagementBry Cunal
 
System Administration: Introduction to system administration
System Administration: Introduction to system administrationSystem Administration: Introduction to system administration
System Administration: Introduction to system administrationKhang-Ling Loh
 
Network Administrator
Network AdministratorNetwork Administrator
Network Administratorguest371b1b4
 
Domain Name System DNS
Domain Name System DNSDomain Name System DNS
Domain Name System DNSAkshay Tiwari
 
difference between hub, bridge, switch and router
difference between hub, bridge, switch and routerdifference between hub, bridge, switch and router
difference between hub, bridge, switch and routerAkmal Cikmat
 

Viewers also liked (20)

Computer networking devices
Computer networking devicesComputer networking devices
Computer networking devices
 
switching techniques in data communication and networking
switching techniques in data communication and networkingswitching techniques in data communication and networking
switching techniques in data communication and networking
 
Basics of telecommunication and networking
Basics of telecommunication and networkingBasics of telecommunication and networking
Basics of telecommunication and networking
 
Network Software
Network SoftwareNetwork Software
Network Software
 
Network software n othr types of software
Network software n othr types of software Network software n othr types of software
Network software n othr types of software
 
Networking Basics
Networking BasicsNetworking Basics
Networking Basics
 
Network Hardware And Software
Network Hardware And SoftwareNetwork Hardware And Software
Network Hardware And Software
 
HIGH SPEED NETWORKS
HIGH SPEED NETWORKSHIGH SPEED NETWORKS
HIGH SPEED NETWORKS
 
Basic networking in power point by suprabha
Basic networking in power point by suprabhaBasic networking in power point by suprabha
Basic networking in power point by suprabha
 
1 introduction-to-computer-networking
1 introduction-to-computer-networking1 introduction-to-computer-networking
1 introduction-to-computer-networking
 
Ambient back scatter
Ambient back scatterAmbient back scatter
Ambient back scatter
 
Domain name system presentation
Domain name system presentationDomain name system presentation
Domain name system presentation
 
Computer hardware and networking components
Computer hardware and networking componentsComputer hardware and networking components
Computer hardware and networking components
 
System and network administration network services
System and network administration network servicesSystem and network administration network services
System and network administration network services
 
Network administration and Management
Network administration and ManagementNetwork administration and Management
Network administration and Management
 
System Administration: Introduction to system administration
System Administration: Introduction to system administrationSystem Administration: Introduction to system administration
System Administration: Introduction to system administration
 
Network Administrator
Network AdministratorNetwork Administrator
Network Administrator
 
Domain Name System DNS
Domain Name System DNSDomain Name System DNS
Domain Name System DNS
 
Common Network Services
Common Network ServicesCommon Network Services
Common Network Services
 
difference between hub, bridge, switch and router
difference between hub, bridge, switch and routerdifference between hub, bridge, switch and router
difference between hub, bridge, switch and router
 

Similar to Computer networks guide

Introduction to computer networking
Introduction to computer networkingIntroduction to computer networking
Introduction to computer networkingSameer Sharma
 
INTRODUCTION_TO_COMPUTER_NETWORKS.pptx
INTRODUCTION_TO_COMPUTER_NETWORKS.pptxINTRODUCTION_TO_COMPUTER_NETWORKS.pptx
INTRODUCTION_TO_COMPUTER_NETWORKS.pptxGajananBhusare5
 
Introduction to computer_networks
Introduction to computer_networksIntroduction to computer_networks
Introduction to computer_networksJohn Bakunda
 
INTRODUCTION_TO_COMPUTER_NETWORKS.pptx
INTRODUCTION_TO_COMPUTER_NETWORKS.pptxINTRODUCTION_TO_COMPUTER_NETWORKS.pptx
INTRODUCTION_TO_COMPUTER_NETWORKS.pptxasaijohn
 
Introduction to computer_networks
Introduction to computer_networksIntroduction to computer_networks
Introduction to computer_networksShikhaMaheshwari17
 
INTRODUCTION_TO_COMPUTER_NETWORKS.pptx
INTRODUCTION_TO_COMPUTER_NETWORKS.pptxINTRODUCTION_TO_COMPUTER_NETWORKS.pptx
INTRODUCTION_TO_COMPUTER_NETWORKS.pptxraja653423
 
Introduction to computer_networks
Introduction to computer_networksIntroduction to computer_networks
Introduction to computer_networksnitu kedia
 
Chapter 11 Computer Networks I.pptx
Chapter 11 Computer Networks I.pptxChapter 11 Computer Networks I.pptx
Chapter 11 Computer Networks I.pptxBushraBush2
 
Computer network
Computer networkComputer network
Computer networkAnupan Jain
 
Computer Network Second Edition
Computer Network Second EditionComputer Network Second Edition
Computer Network Second EditionMd Saylab
 
Computer networking xii
Computer networking  xiiComputer networking  xii
Computer networking xiisaltyp
 
Introduction to computer_networks (unit1)
Introduction to computer_networks (unit1)Introduction to computer_networks (unit1)
Introduction to computer_networks (unit1)Neha Kurale
 
Basicnetworkconcepts 140422021634-phpapp01
Basicnetworkconcepts 140422021634-phpapp01Basicnetworkconcepts 140422021634-phpapp01
Basicnetworkconcepts 140422021634-phpapp01sreekanth umnarsetty
 
Computer networking project
Computer networking projectComputer networking project
Computer networking projectAshifimrankhan1
 
Imd Corporate Presentation Nov 2010
Imd Corporate Presentation   Nov 2010Imd Corporate Presentation   Nov 2010
Imd Corporate Presentation Nov 2010anneke_blaauw
 

Similar to Computer networks guide (20)

Computer network 1
Computer network 1Computer network 1
Computer network 1
 
Introduction to computer networking
Introduction to computer networkingIntroduction to computer networking
Introduction to computer networking
 
Networking
NetworkingNetworking
Networking
 
INTRODUCTION_TO_COMPUTER_NETWORKS.pptx
INTRODUCTION_TO_COMPUTER_NETWORKS.pptxINTRODUCTION_TO_COMPUTER_NETWORKS.pptx
INTRODUCTION_TO_COMPUTER_NETWORKS.pptx
 
Introduction to computer_networks
Introduction to computer_networksIntroduction to computer_networks
Introduction to computer_networks
 
INTRODUCTION_TO_COMPUTER_NETWORKS.pptx
INTRODUCTION_TO_COMPUTER_NETWORKS.pptxINTRODUCTION_TO_COMPUTER_NETWORKS.pptx
INTRODUCTION_TO_COMPUTER_NETWORKS.pptx
 
Introduction to computer_networks
Introduction to computer_networksIntroduction to computer_networks
Introduction to computer_networks
 
INTRODUCTION_TO_COMPUTER_NETWORKS.pptx
INTRODUCTION_TO_COMPUTER_NETWORKS.pptxINTRODUCTION_TO_COMPUTER_NETWORKS.pptx
INTRODUCTION_TO_COMPUTER_NETWORKS.pptx
 
Introduction to computer_networks
Introduction to computer_networksIntroduction to computer_networks
Introduction to computer_networks
 
Chapter 11 Computer Networks I.pptx
Chapter 11 Computer Networks I.pptxChapter 11 Computer Networks I.pptx
Chapter 11 Computer Networks I.pptx
 
Computer network
Computer networkComputer network
Computer network
 
Computer Network Second Edition
Computer Network Second EditionComputer Network Second Edition
Computer Network Second Edition
 
Computer networking xii
Computer networking  xiiComputer networking  xii
Computer networking xii
 
Introduction to computer_networks (unit1)
Introduction to computer_networks (unit1)Introduction to computer_networks (unit1)
Introduction to computer_networks (unit1)
 
Computer networks
Computer networksComputer networks
Computer networks
 
Basicnetworkconcepts 140422021634-phpapp01
Basicnetworkconcepts 140422021634-phpapp01Basicnetworkconcepts 140422021634-phpapp01
Basicnetworkconcepts 140422021634-phpapp01
 
About Networking
About NetworkingAbout Networking
About Networking
 
Computer networking project
Computer networking projectComputer networking project
Computer networking project
 
Imd Corporate Presentation Nov 2010
Imd Corporate Presentation   Nov 2010Imd Corporate Presentation   Nov 2010
Imd Corporate Presentation Nov 2010
 
1 networking
1 networking1 networking
1 networking
 

More from Kak Yong

Multimedia immersif
Multimedia immersifMultimedia immersif
Multimedia immersifKak Yong
 
Module programming
Module programmingModule programming
Module programmingKak Yong
 
Module info systems
Module info systemsModule info systems
Module info systemsKak Yong
 
Module ict society
Module ict societyModule ict society
Module ict societyKak Yong
 
Module computer systems
Module computer systemsModule computer systems
Module computer systemsKak Yong
 
Module networks
Module networksModule networks
Module networksKak Yong
 
La5 ict-topic-5-programming
La5 ict-topic-5-programmingLa5 ict-topic-5-programming
La5 ict-topic-5-programmingKak Yong
 
La4 ict-topic-4-multimedia
La4 ict-topic-4-multimediaLa4 ict-topic-4-multimedia
La4 ict-topic-4-multimediaKak Yong
 
La6 ict-topic-6-information-systems
La6 ict-topic-6-information-systemsLa6 ict-topic-6-information-systems
La6 ict-topic-6-information-systemsKak Yong
 
La3 ict-topic-3-computer-networks
La3 ict-topic-3-computer-networksLa3 ict-topic-3-computer-networks
La3 ict-topic-3-computer-networksKak Yong
 
La2 ict-topic-2-computer-systems
La2 ict-topic-2-computer-systemsLa2 ict-topic-2-computer-systems
La2 ict-topic-2-computer-systemsKak Yong
 
La1 ict-topic-1-ict-and-society
La1 ict-topic-1-ict-and-societyLa1 ict-topic-1-ict-and-society
La1 ict-topic-1-ict-and-societyKak Yong
 
Bidangpembelajaran6 2-120925005654-phpapp02
Bidangpembelajaran6 2-120925005654-phpapp02Bidangpembelajaran6 2-120925005654-phpapp02
Bidangpembelajaran6 2-120925005654-phpapp02Kak Yong
 
Bidangpembelajaran6 1-120925005634-phpapp02
Bidangpembelajaran6 1-120925005634-phpapp02Bidangpembelajaran6 1-120925005634-phpapp02
Bidangpembelajaran6 1-120925005634-phpapp02Kak Yong
 
Bidangpembelajaran5 3-120925005106-phpapp02
Bidangpembelajaran5 3-120925005106-phpapp02Bidangpembelajaran5 3-120925005106-phpapp02
Bidangpembelajaran5 3-120925005106-phpapp02Kak Yong
 
Bidangpembelajaran5 2-120925005109-phpapp02
Bidangpembelajaran5 2-120925005109-phpapp02Bidangpembelajaran5 2-120925005109-phpapp02
Bidangpembelajaran5 2-120925005109-phpapp02Kak Yong
 
Bidangpembelajaran5 1-120925005019-phpapp01
Bidangpembelajaran5 1-120925005019-phpapp01Bidangpembelajaran5 1-120925005019-phpapp01
Bidangpembelajaran5 1-120925005019-phpapp01Kak Yong
 
Bidangpembelajaran4 3-120925004752-phpapp01
Bidangpembelajaran4 3-120925004752-phpapp01Bidangpembelajaran4 3-120925004752-phpapp01
Bidangpembelajaran4 3-120925004752-phpapp01Kak Yong
 
Bidangpembelajaran4 2-120925004637-phpapp02
Bidangpembelajaran4 2-120925004637-phpapp02Bidangpembelajaran4 2-120925004637-phpapp02
Bidangpembelajaran4 2-120925004637-phpapp02Kak Yong
 

More from Kak Yong (20)

Multimedia immersif
Multimedia immersifMultimedia immersif
Multimedia immersif
 
Module programming
Module programmingModule programming
Module programming
 
Module info systems
Module info systemsModule info systems
Module info systems
 
Module ict society
Module ict societyModule ict society
Module ict society
 
Module computer systems
Module computer systemsModule computer systems
Module computer systems
 
Module networks
Module networksModule networks
Module networks
 
Synopsis
SynopsisSynopsis
Synopsis
 
La5 ict-topic-5-programming
La5 ict-topic-5-programmingLa5 ict-topic-5-programming
La5 ict-topic-5-programming
 
La4 ict-topic-4-multimedia
La4 ict-topic-4-multimediaLa4 ict-topic-4-multimedia
La4 ict-topic-4-multimedia
 
La6 ict-topic-6-information-systems
La6 ict-topic-6-information-systemsLa6 ict-topic-6-information-systems
La6 ict-topic-6-information-systems
 
La3 ict-topic-3-computer-networks
La3 ict-topic-3-computer-networksLa3 ict-topic-3-computer-networks
La3 ict-topic-3-computer-networks
 
La2 ict-topic-2-computer-systems
La2 ict-topic-2-computer-systemsLa2 ict-topic-2-computer-systems
La2 ict-topic-2-computer-systems
 
La1 ict-topic-1-ict-and-society
La1 ict-topic-1-ict-and-societyLa1 ict-topic-1-ict-and-society
La1 ict-topic-1-ict-and-society
 
Bidangpembelajaran6 2-120925005654-phpapp02
Bidangpembelajaran6 2-120925005654-phpapp02Bidangpembelajaran6 2-120925005654-phpapp02
Bidangpembelajaran6 2-120925005654-phpapp02
 
Bidangpembelajaran6 1-120925005634-phpapp02
Bidangpembelajaran6 1-120925005634-phpapp02Bidangpembelajaran6 1-120925005634-phpapp02
Bidangpembelajaran6 1-120925005634-phpapp02
 
Bidangpembelajaran5 3-120925005106-phpapp02
Bidangpembelajaran5 3-120925005106-phpapp02Bidangpembelajaran5 3-120925005106-phpapp02
Bidangpembelajaran5 3-120925005106-phpapp02
 
Bidangpembelajaran5 2-120925005109-phpapp02
Bidangpembelajaran5 2-120925005109-phpapp02Bidangpembelajaran5 2-120925005109-phpapp02
Bidangpembelajaran5 2-120925005109-phpapp02
 
Bidangpembelajaran5 1-120925005019-phpapp01
Bidangpembelajaran5 1-120925005019-phpapp01Bidangpembelajaran5 1-120925005019-phpapp01
Bidangpembelajaran5 1-120925005019-phpapp01
 
Bidangpembelajaran4 3-120925004752-phpapp01
Bidangpembelajaran4 3-120925004752-phpapp01Bidangpembelajaran4 3-120925004752-phpapp01
Bidangpembelajaran4 3-120925004752-phpapp01
 
Bidangpembelajaran4 2-120925004637-phpapp02
Bidangpembelajaran4 2-120925004637-phpapp02Bidangpembelajaran4 2-120925004637-phpapp02
Bidangpembelajaran4 2-120925004637-phpapp02
 

Recently uploaded

Q-Factor General Quiz-7th April 2024, Quiz Club NITW
Q-Factor General Quiz-7th April 2024, Quiz Club NITWQ-Factor General Quiz-7th April 2024, Quiz Club NITW
Q-Factor General Quiz-7th April 2024, Quiz Club NITWQuiz Club NITW
 
31 ĐỀ THI THỬ VÀO LỚP 10 - TIẾNG ANH - FORM MỚI 2025 - 40 CÂU HỎI - BÙI VĂN V...
31 ĐỀ THI THỬ VÀO LỚP 10 - TIẾNG ANH - FORM MỚI 2025 - 40 CÂU HỎI - BÙI VĂN V...31 ĐỀ THI THỬ VÀO LỚP 10 - TIẾNG ANH - FORM MỚI 2025 - 40 CÂU HỎI - BÙI VĂN V...
31 ĐỀ THI THỬ VÀO LỚP 10 - TIẾNG ANH - FORM MỚI 2025 - 40 CÂU HỎI - BÙI VĂN V...Nguyen Thanh Tu Collection
 
The role of Geography in climate education: science and active citizenship
The role of Geography in climate education: science and active citizenshipThe role of Geography in climate education: science and active citizenship
The role of Geography in climate education: science and active citizenshipKarl Donert
 
Scientific Writing :Research Discourse
Scientific  Writing :Research  DiscourseScientific  Writing :Research  Discourse
Scientific Writing :Research DiscourseAnita GoswamiGiri
 
Comparative Literature in India by Amiya dev.pptx
Comparative Literature in India by Amiya dev.pptxComparative Literature in India by Amiya dev.pptx
Comparative Literature in India by Amiya dev.pptxAvaniJani1
 
Narcotic and Non Narcotic Analgesic..pdf
Narcotic and Non Narcotic Analgesic..pdfNarcotic and Non Narcotic Analgesic..pdf
Narcotic and Non Narcotic Analgesic..pdfPrerana Jadhav
 
DBMSArchitecture_QueryProcessingandOptimization.pdf
DBMSArchitecture_QueryProcessingandOptimization.pdfDBMSArchitecture_QueryProcessingandOptimization.pdf
DBMSArchitecture_QueryProcessingandOptimization.pdfChristalin Nelson
 
CHUYÊN ĐỀ ÔN THEO CÂU CHO HỌC SINH LỚP 12 ĐỂ ĐẠT ĐIỂM 5+ THI TỐT NGHIỆP THPT ...
CHUYÊN ĐỀ ÔN THEO CÂU CHO HỌC SINH LỚP 12 ĐỂ ĐẠT ĐIỂM 5+ THI TỐT NGHIỆP THPT ...CHUYÊN ĐỀ ÔN THEO CÂU CHO HỌC SINH LỚP 12 ĐỂ ĐẠT ĐIỂM 5+ THI TỐT NGHIỆP THPT ...
CHUYÊN ĐỀ ÔN THEO CÂU CHO HỌC SINH LỚP 12 ĐỂ ĐẠT ĐIỂM 5+ THI TỐT NGHIỆP THPT ...Nguyen Thanh Tu Collection
 
4.9.24 Social Capital and Social Exclusion.pptx
4.9.24 Social Capital and Social Exclusion.pptx4.9.24 Social Capital and Social Exclusion.pptx
4.9.24 Social Capital and Social Exclusion.pptxmary850239
 
CLASSIFICATION OF ANTI - CANCER DRUGS.pptx
CLASSIFICATION OF ANTI - CANCER DRUGS.pptxCLASSIFICATION OF ANTI - CANCER DRUGS.pptx
CLASSIFICATION OF ANTI - CANCER DRUGS.pptxAnupam32727
 
Indexing Structures in Database Management system.pdf
Indexing Structures in Database Management system.pdfIndexing Structures in Database Management system.pdf
Indexing Structures in Database Management system.pdfChristalin Nelson
 
DiskStorage_BasicFileStructuresandHashing.pdf
DiskStorage_BasicFileStructuresandHashing.pdfDiskStorage_BasicFileStructuresandHashing.pdf
DiskStorage_BasicFileStructuresandHashing.pdfChristalin Nelson
 
Healthy Minds, Flourishing Lives: A Philosophical Approach to Mental Health a...
Healthy Minds, Flourishing Lives: A Philosophical Approach to Mental Health a...Healthy Minds, Flourishing Lives: A Philosophical Approach to Mental Health a...
Healthy Minds, Flourishing Lives: A Philosophical Approach to Mental Health a...Osopher
 
Q-Factor HISPOL Quiz-6th April 2024, Quiz Club NITW
Q-Factor HISPOL Quiz-6th April 2024, Quiz Club NITWQ-Factor HISPOL Quiz-6th April 2024, Quiz Club NITW
Q-Factor HISPOL Quiz-6th April 2024, Quiz Club NITWQuiz Club NITW
 
An Overview of the Calendar App in Odoo 17 ERP
An Overview of the Calendar App in Odoo 17 ERPAn Overview of the Calendar App in Odoo 17 ERP
An Overview of the Calendar App in Odoo 17 ERPCeline George
 
MS4 level being good citizen -imperative- (1) (1).pdf
MS4 level   being good citizen -imperative- (1) (1).pdfMS4 level   being good citizen -imperative- (1) (1).pdf
MS4 level being good citizen -imperative- (1) (1).pdfMr Bounab Samir
 

Recently uploaded (20)

Q-Factor General Quiz-7th April 2024, Quiz Club NITW
Q-Factor General Quiz-7th April 2024, Quiz Club NITWQ-Factor General Quiz-7th April 2024, Quiz Club NITW
Q-Factor General Quiz-7th April 2024, Quiz Club NITW
 
31 ĐỀ THI THỬ VÀO LỚP 10 - TIẾNG ANH - FORM MỚI 2025 - 40 CÂU HỎI - BÙI VĂN V...
31 ĐỀ THI THỬ VÀO LỚP 10 - TIẾNG ANH - FORM MỚI 2025 - 40 CÂU HỎI - BÙI VĂN V...31 ĐỀ THI THỬ VÀO LỚP 10 - TIẾNG ANH - FORM MỚI 2025 - 40 CÂU HỎI - BÙI VĂN V...
31 ĐỀ THI THỬ VÀO LỚP 10 - TIẾNG ANH - FORM MỚI 2025 - 40 CÂU HỎI - BÙI VĂN V...
 
Mattingly "AI & Prompt Design" - Introduction to Machine Learning"
Mattingly "AI & Prompt Design" - Introduction to Machine Learning"Mattingly "AI & Prompt Design" - Introduction to Machine Learning"
Mattingly "AI & Prompt Design" - Introduction to Machine Learning"
 
The role of Geography in climate education: science and active citizenship
The role of Geography in climate education: science and active citizenshipThe role of Geography in climate education: science and active citizenship
The role of Geography in climate education: science and active citizenship
 
Scientific Writing :Research Discourse
Scientific  Writing :Research  DiscourseScientific  Writing :Research  Discourse
Scientific Writing :Research Discourse
 
Faculty Profile prashantha K EEE dept Sri Sairam college of Engineering
Faculty Profile prashantha K EEE dept Sri Sairam college of EngineeringFaculty Profile prashantha K EEE dept Sri Sairam college of Engineering
Faculty Profile prashantha K EEE dept Sri Sairam college of Engineering
 
Comparative Literature in India by Amiya dev.pptx
Comparative Literature in India by Amiya dev.pptxComparative Literature in India by Amiya dev.pptx
Comparative Literature in India by Amiya dev.pptx
 
Narcotic and Non Narcotic Analgesic..pdf
Narcotic and Non Narcotic Analgesic..pdfNarcotic and Non Narcotic Analgesic..pdf
Narcotic and Non Narcotic Analgesic..pdf
 
DBMSArchitecture_QueryProcessingandOptimization.pdf
DBMSArchitecture_QueryProcessingandOptimization.pdfDBMSArchitecture_QueryProcessingandOptimization.pdf
DBMSArchitecture_QueryProcessingandOptimization.pdf
 
CHUYÊN ĐỀ ÔN THEO CÂU CHO HỌC SINH LỚP 12 ĐỂ ĐẠT ĐIỂM 5+ THI TỐT NGHIỆP THPT ...
CHUYÊN ĐỀ ÔN THEO CÂU CHO HỌC SINH LỚP 12 ĐỂ ĐẠT ĐIỂM 5+ THI TỐT NGHIỆP THPT ...CHUYÊN ĐỀ ÔN THEO CÂU CHO HỌC SINH LỚP 12 ĐỂ ĐẠT ĐIỂM 5+ THI TỐT NGHIỆP THPT ...
CHUYÊN ĐỀ ÔN THEO CÂU CHO HỌC SINH LỚP 12 ĐỂ ĐẠT ĐIỂM 5+ THI TỐT NGHIỆP THPT ...
 
Spearman's correlation,Formula,Advantages,
Spearman's correlation,Formula,Advantages,Spearman's correlation,Formula,Advantages,
Spearman's correlation,Formula,Advantages,
 
4.9.24 Social Capital and Social Exclusion.pptx
4.9.24 Social Capital and Social Exclusion.pptx4.9.24 Social Capital and Social Exclusion.pptx
4.9.24 Social Capital and Social Exclusion.pptx
 
CLASSIFICATION OF ANTI - CANCER DRUGS.pptx
CLASSIFICATION OF ANTI - CANCER DRUGS.pptxCLASSIFICATION OF ANTI - CANCER DRUGS.pptx
CLASSIFICATION OF ANTI - CANCER DRUGS.pptx
 
Indexing Structures in Database Management system.pdf
Indexing Structures in Database Management system.pdfIndexing Structures in Database Management system.pdf
Indexing Structures in Database Management system.pdf
 
Plagiarism,forms,understand about plagiarism,avoid plagiarism,key significanc...
Plagiarism,forms,understand about plagiarism,avoid plagiarism,key significanc...Plagiarism,forms,understand about plagiarism,avoid plagiarism,key significanc...
Plagiarism,forms,understand about plagiarism,avoid plagiarism,key significanc...
 
DiskStorage_BasicFileStructuresandHashing.pdf
DiskStorage_BasicFileStructuresandHashing.pdfDiskStorage_BasicFileStructuresandHashing.pdf
DiskStorage_BasicFileStructuresandHashing.pdf
 
Healthy Minds, Flourishing Lives: A Philosophical Approach to Mental Health a...
Healthy Minds, Flourishing Lives: A Philosophical Approach to Mental Health a...Healthy Minds, Flourishing Lives: A Philosophical Approach to Mental Health a...
Healthy Minds, Flourishing Lives: A Philosophical Approach to Mental Health a...
 
Q-Factor HISPOL Quiz-6th April 2024, Quiz Club NITW
Q-Factor HISPOL Quiz-6th April 2024, Quiz Club NITWQ-Factor HISPOL Quiz-6th April 2024, Quiz Club NITW
Q-Factor HISPOL Quiz-6th April 2024, Quiz Club NITW
 
An Overview of the Calendar App in Odoo 17 ERP
An Overview of the Calendar App in Odoo 17 ERPAn Overview of the Calendar App in Odoo 17 ERP
An Overview of the Calendar App in Odoo 17 ERP
 
MS4 level being good citizen -imperative- (1) (1).pdf
MS4 level   being good citizen -imperative- (1) (1).pdfMS4 level   being good citizen -imperative- (1) (1).pdf
MS4 level being good citizen -imperative- (1) (1).pdf
 

Computer networks guide

  • 1. CHAPTER 3: COMPUTER NETWORKS AND COMMUNICATIONS Basic Concepts of Computer Networks
  • 2. Definition of Computer Networks A computer network is a Devices – printer, scanner collection of computers Communication devices and devices NIC Router connected together via Hub ?? ?? communication devices Transmission Media and transmission media. For examples it may Physical connect computers, Infrared printers and scanners. Radiowave Satellite
  • 3.
  • 4. Definition of Communication Communication describes a process in which two or more computer or devices transfer data, instructions and information.
  • 5. The Importance/Advantage of Computer Networks s Sharing of devices such as printer and scanner a Sharing of program/software a Sharing of files , Sharing of data a Sharing of information , Sharing of single high-speed internet connection d Can access server centered database B Better communication using internet services such as email, mailing list and Internet Relat Chat (IRC)
  • 6.
  • 7. Types of Computer Networks A local area network is a network that connects Local Area Network (LAN) computers and device in a limited geographical area such as a home, school computer laboratory, office building
  • 8. A metropolitan area network (MAN) is a high speed Metropolitan Area network that connects local area networks in a Network (MAN) metropolitan area such as city or town and handles bulk of communication activity across the region A MAN typically includes one or more LAN but covers a smaller geographic area than a WAN
  • 9. A wide area network is a network that covers a large Wide Area Network geographical area such country or the world (WAN) WAN combines many types of media such as telephone lines, cables and radio wave. A WAN can be one large network or can consist of two or more LANs connected together The internet is the worlds largest WAN
  • 10. Differentiate between the types of Computer Networks Different LAN MAN WAN Cost Low optic High Higher Network Size Small Larger Largest Speed Fastest Slower Slowest Transmission Twisted-pair Twisted-pair Fiber optic Media Fibre-optic cables Radio wave Satellite Number of Smallest Large Largest Computers
  • 11. Network Architecture  Network architecture is the overall design of a computer network that describes how a computer network is configured and what strategies are being used.  It is mainly focuses on the function of the networks.  It is also known as network model or network design.  Two main network architecture:
  • 12. A server is a computer that provides services to clients and controls access to hardware, software and other resources A client is a computer that request services from a server computer
  • 13. On a client/server network, one computer act as a server Client/Server that provides services and the other computers (client) on the network request services from the server. A server is a computer that controls access to the hardware, software and other resources on the network and provides a centralized storage area for program. A client is a computer that request services from a server computer. Peer-to-peer is a simple, inexpensive network that Peer-to-Peer typically connects fewer than 10 computers. All computers in the network have equal capabilities to use the resources (hardware, software, data and file) available on the network. With peer-to-peer networks, there is no central server.
  • 14. The Differences between Client/Server and Peer-to-Peer Client/Server Peer-to-Peer 1) Server has to control ability 1) All computers have equal while client’s don’t ability 2) Higher cabling cost 2) Cheaper cabling cost 3) It is used in small and large 3) Normally used in small networks networks with less than 10 4) Easy to manage computers 5) Install software only in the 4) Hard to manage server while the clients share 5) Install software to every the software computer 6) One powerful computer 6) No server is needed acting as server