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NETWORK ORIENTATION

NETWORK ORIENTATION. Network Orientation. OBJECTIVE:. Concept of Networking Various types of Networks Networking Methods. Network Orientation. 1.0 WHAT IS NETWORKING ?. The ability to share data & resources between computers Computers that are part of the network can share:

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NETWORK ORIENTATION

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  1. NETWORK ORIENTATION

  2. Network Orientation OBJECTIVE: • Concept of Networking • Various types of Networks • Networking Methods

  3. Network Orientation 1.0 WHAT IS NETWORKING ? • The ability to share data & resources between computers • Computers that are part of the network can share: • Data • Messages • Graphics • Printers, Scanners, Plotters • Fax Machines, Modems • Zip, CD Drives etc.. 1.1 Types of Networks: Networks may be classified according to proximity of their nodes 1.1.1 LAN (Local Area Network) Computers connected within a limited area (geographically close area) perhaps in a factory or office or university campus (A network using Ethernet & Token Ring standards is also referred as LAN

  4. Network Orientation

  5. Network Orientation

  6. Network Orientation 1.1.2 WAN (Wide Area Network) • When geographical scope of network grows perhaps within cities or even countries, the LAN becomes a Wide Area Network called WAN • According to IEEE, a network within a 6000 feet range is recognized as LAN. Beyond this limit, networks are classified as WANs • Technically, when two or more LANs are connected together, they become WAN 1.1.3 Value Added Networks (VAN) • VAN Vendors are organizations that provide a service to public (specific region) over common carrier facilites • purpose of the VANs is to facilitate the firms or even individuals to retrieve or subscribe for information which is stored in large computer databases • Examples include CompuStat, Emerald, Dow Jones News, Reuters, Nexis etc 1.1.3 MAN (Metropolitan Area Network) A network within a city but smaller than WAN

  7. Network Orientation

  8. Network Orientation

  9. Network Orientation

  10. Network Orientation 2.0 NETWORKING METHODS 2.1 Peer to Peer Networks / Workgroups • All the computers are equal & therefore called PEERS • Each computer in a network functions both as Client & Server • The user at each computer determines what data on their networks gets shared on the network

  11. Network Orientation 2.1.1 Where Peer to Peer is Appropriate ? • Perhaps when there are 10 or less users • Security is not an issue • Cost is budgeted 2.1.2 Peer to Peer Operating Systems • MS Windows XP Professional, MS Windows 2000 Professional, MS Windows Vista, MS Windows NT, MS Windows 98/ME 2.2 Server Based Networks • There is always a centralized & dedicated server which acts as server only • Server based networks have always centralized security • Resource sharing is also centralized • It supports any number of users even in thousands 2.2.1 Server based Operating Systems • MS Windows 2003 Server, MS Windows 2000 Server, Red Hat Linux Server OS

  12. Network Orientation

  13. Network Orientation 2.2.2 Types of Servers • File / Print Server • Application Server • Mail Server • Fax Server • Proxy Server • Web Server

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