Chapter -5 Networking and Server

Introduction of Network – A computer network consists of two or more computing devices connected to each other to share resources and information called a network.
  1. The network becomes a powerful tool when computers communicate and share resources with other computers on the same network or entirely distinct networks.
  2. Computers on a network can act as a client or a server.
  3. A client is a computer that requests for resources.
  4. A server is computer that controls and provides access to resources.
Why need of network-
  1. A computer that operates independently from other computers is called a standalone computer.
  2. The processor transferring data from one system to another using various storage devices is called sneakernet.
Classification-
LAN, WNA, and MAN are the basic types of classification of which LAN and WAN are frequently used.
Local area network (LAN):
  1. A LAN covers a relatively small area such as a classroom, school, or a single building.
  2. LANs are inexpensive to install and also provide higher speeds.
Metropolitan area network (MAN)
  1. A MAN spans the distance of a typical metropolitan city.
  2. The cost of installation and operation is higher.
  3. MANs use high-speed connections such as fiber optics to achieve higher speeds.
Wide area network (WAN)
  1. WAN span a larger area than a single city.
  2. These use long distance telecommunication network for connection, thereby increasing the cost.
  3. The internet is a good example of a WAN.
SERVER-BASED:
  • A Server-based network offers centralized control and is designed for secure operations.
  • In a server-based network, a dedicated server controls the network.
  • A dedicated server is one that services the network by storing data, applications, resources, and also provides access to resources required by the client.
  • These servers can also control the network’s security from one centralized location or share it with other specially configured servers.
Server- The server is used to manage client-based operating system also say that server is used to manage all computer.
Server OS-
  1. Window 2000
  2. Window 2003
  3. Window 2008