Shruti Speak's

Type Of connections for Networking(Cont.) Based on Scale , Computer networks can be classified into Local Area (LAN), Metropolitan Area Network (MAN) and Wide Area Networks (WAN). a) Local Area Network (LAN): LAN stands for Local Area Network and is usually privately owned. It spans short distances and connects relatively a small number of computers. It is generally used to link the devices in a single office, building or campus usually up to few kilometers in size. The main use of LAN is to share resources and to exchange information. LAN can be distinguished from other kinds of networks by three categories: their size, transmission technology and topology. In LANs the worst-case transmission time is bounded which means they are restricted in size. It simplifies network management and is more reliable than MAN and WAN. b) Metropolitan Area Network (MAN): MAN stands for Metropolitan Area Network. It spans a small city or a town and it usually covers the entire cit

Type Of Connections for Networking Based on   transmission technology , Computer networks can be broadly classified as follows:  a) Broadcast networks: This network has a single communication channel which is shared by all other machines present on the network. All the machines on the network receive short messages known as packets and the address field within the packet specifies the intended recipient. The machine first checks the address field of the packet when it receives it and only if the packet is intended for itself, it processes it otherwise it simply ignores it. b) Point to Point Networks:           This network provides a dedicated link between two devices. Mostly these connections use an actual length of wire or cables to connect the two ends. In point to point Networks usually the end devices which communicate are referred as stations where as the switching devices are known as nodes.