Week 6 Notes

Local Area Network:

-very short account
-Local Area Network (LAN)- " computer network covering a small geographic area, like a home, office, or group of buildings e.g. a school."
-began in late 60s, early 70s by Universities as need for large networks and high-speed interconnections increased
-early systems include: Cambridge University's Cambridge Rings, Ethernet developed at Xeros PARC, and ARCNET was developed by Datapoint Corporation
-transition to personal computers, LAN business
- Smaller LANs- "consist of a one or more switches linked to each other , often with one connected to a router, cable/DSL modem"
Larger LANs- "characterized by their use of redundant links with switches using the spanning tree protocol to prevent loops, their ability to manage differing traffic types via quality of service, and to segregate traffic. Larger LANS also contain a wide variety of network devices such as switches, firewalls, routers, load balancers, sensors and so on"

Computer network:

-Computer network- "group of interconnected computers. Networks may be classified according to a wide variety of characteristics. This article provides a general overview of some types and categories and presents the basic components of a network."
- classified as Local Area Network, Wide Area Network, Metropolitan Area Network based on scale
-can also be classified by connection method
-can be further classified according to the functional relationships which exist among the elements of the network, i.e Active Networking, Client-server, Peer-to-Peer
- may be classified according to the network topology upon which the network is based, such as Bus, Star, Ring, Mesh, Star-Bus, tree or Hierarchical network,
-types: Personal Network Area (PAN), Local Area Network (LAN), Campus Area Network (CAN), Metropolitan Area Network (MAN), Wide Area Network (WAN), Global Area Network (GAN), intranet, extranet, internet
-hardware components: network interface cords, repeaters, hubs, bridges Switches, routers.


Common Types of Computer Networks-Youtube

-Frank Klein, common types of networks
-most common, PAN
-next, LAN, technology advancing quickly
-then WAN, “the how of that is the design of the network”
-MANs usually very big……duh
-I do not have any questions, very general info video