Computer networking anjalisingh1
- 1. Computer Networking By-Anjali Singh M.Sc. 4th Semester Department of Zoology University Of Lucknow
- 2. Computer Networking • Computer networking is the engineering discipline concerned with the communication between computer systems or devices. • It refers to the total process of creating and using computer networks with respect to hardware , protocols and software including wired and wireless technologies. • A computer network is any set of computers or devices connected to each other with the ability to exchange data. So there are different types of network.
- 3. Types Of Networks • LAN (Local Area Network) • WAN (Wide Area Network) • MAN (Metropolitan Area Network) • ETHERNET AND WIFI • CAN (Campus Area Network) • PAN (Personal Area Network) • GAN (Global Area Network) • WLAN/WWAN
- 4. LAN (Local Area Network) • 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. • Smallest network compared to the other two networks. • The simplest form of LAN is to connect two computers together. • LAN is operated within a limited physical area, such as at home, school, a single building or several buildings. • A network which consists of less than 500 interconnected devices across several buildings, is still recognized as a LAN.
- 5. WAN (Wide Area Network) • A wide area network is a network that covers a large geographical area such as country or the world. • The largest network of all network types. • Internet is the largest WAN in the world. • WAN generally covers large distances such as states, countries or continents. • WAN is a group of MANs or LANs or the mixture of both networks. • WAN combines many types of media such as telephone lines, cables and radio wave. E.g.: Local banks have always maintained their business online by connecting all computers of their branches in the countries. International banks also use WAN to connect their computers all over the world.
- 6. MAN (Metropolitan Area Network) • A metropolitan area network (MAN) is a high speed network that connects local area networks in a 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 • Important cities like New Delhi, Mumbai, Kolkata, Bangalore, Chennai etc. Multi- National Companies (MNCs) that have several branches within the Mumbai city such as banks, use a MAN.
- 7. Ethernet and WIFI • They are the two primary ways to enable LAN connections. • Ethernet is a system for connecting a number of computer systems to form a LAN , with protocols to control the passing of information and to avoid simultaneous transmission by two or more systems. • WIFI uses radio waves to connect computers to the LAN.
- 8. CAN (Campus Area Network) • A network that connects two or more LAN’s but limited to a specific and continuous geographical area such as , college, university campus, industrial complex and military base etc.. • CAN can be considered MAN but limited to a area smaller than MAN. • Each department shares the LAN.
- 9. PAN (Personal Area Network) • A personal area network (PAN) is a computer network organized around an individual person and is set up for personal use only. They typically involve a computer, phone, printer, tablet and/or some other personal device like a PDA. • Network used among personal computer devices close to one person. Ex: within the 20-30 feet all devices are interconnected. • PAN can be wireless or carried over wired interfaces such as USB.
- 10. GAN (Global Area Network) • It is a network, composed of interconnected of different networks that cover a unrestricted geographical area.
- 11. THANK YOU!!!
- 12. REFERENCES • Basic Computer Application • www.scribd.com • Class Notes