Computer Networking concepts
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After this lesson module the student will be able to . . .
○ Understand the function of computer network.
○ Discuss how the computer network works.
○ Enumerate and explain the different devices use in computer networking.
○ Differentiate the types of computer network
CSS L11 INTRODUCTION TO COMPUTER NETWORKING
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After this lesson module the student will be able to . . .
○ Understand the function of computer network.
○ Discuss how the computer network works.
○ Enumerate and explain the different devices use in computer networking.
○ Differentiate the types of computer network
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After this lesson module the student will be able to . . .
○ Understand the function of computer network.
○ Discuss how the computer network works.
○ Enumerate and explain the different devices use in computer networking.
○ Differentiate the types of computer network
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After this lesson module the student will be able to . . .
○ Understand the function of computer network.
○ Discuss how the computer network works.
○ Enumerate and explain the different devices use in computer networking.
○ Differentiate the types of computer network
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Computer Networking concepts
- 1. By – Mohammad Sadiq
- 2. A computer network can be defined as a group of computers and other peripheral devices that are linked together for the purpose of sharing data and hard ware resources Each computer in a network is called Node. The computers in a network maybe linked through cables ,telephone lines, radio waves ,or infrared light beams
- 3. S.N. Advantage Description 1 Efficient Use of Storage Media There is no need for separate media to store files. Files stored on server can be used by many user at a time. 2 Preserving Information While personal data can be lost by individual users, Files stored on server are safe as regular backups takes place for server. 3 Reduction in Hardware Cost In a network, devices (e.g. printer) can be shared by many users and thus no need for multiple devices for each user. This reduce the operation cost. 4 Efficiency In network, there is or single point (e.g. server) for modification / deletion of data / software. This increase system efficiency. 5 Redundancy Network system has made hard copy system almost redundant as files can be sent / shared in digital form. 6 Quickest Document Delivery e.g. files sent by email or other applications like WhatsApp
- 4. 1 Network Card 2 Networking Cable 3 Hubs and Switches
- 5. A network card is used to physically attach a computer to a network, so that it can participate in network communication. Ethernet Network Card is the most commonly used network card Nowadays motherboards come with inbuilt Network Card.
- 6. Modern Ethernet networks use twisted pair cable containing 8 wires. These wires are arranged in a special order ,and an RJ-45 connecter is crimped at both ends of the cable Ethernet Cable RJ-45 Connector
- 7. These devices that let you connect one or more computers to other computers, networked devices, or even other networks Hub Switch
- 9. PAN LAN MAN WAN • PAN is a computer network that is mainly created for an individual person. • It is used for communication among devices , such as laptop , mobile etc. • It can be either wired or wireless. PAN generally a range less than 10 meters (30 feet). • LAN- two or more computers and peripheral devices are connected with in a small area •MAN is a larger network than LAN which is spread across a city • WAN-is network connects two or more computers located at far way places
- 11. CLIENT – SERVER PEER TO PEER • It is a network, where several computers called Clients or Workstations are connected to the main computers called Server. • A Server is a computer that provides services to clients and controls access to hardware, software and other resources • Clients are the computers, which request services, like data retrieval, storage etc. from the server • Peer-to-Peer is a network where a few computers having equal capacity and capabilities are connected together to use the resources available on the network