CSCI0613 - Course Packet 1

Group of computers and devices and Connected by transmission media

• Network

• Stand-alone computer

• Advantages of networks

Not connected to other computers

• Uses local software and data

• Network

• Stand-alone computer

• Advantages of networks

Advantages of networks

• Device sharing by multiple users

• Saves money and time

• Central network management

• Uses local software and data

• Connected by transmission media

2 type of Network models

• Peer-to-peer

• Peer-to-Client

• Client-to-Client

• Client/server

Advantages of Peer-to-Peer Networks

• Simple configuration

• practical for large installations

• Less expensive

  Compared to other network models

• flexible

Disadvantages of Peer-to-Peer Networks

• Not practical for large installationsconfiguration

• Not flexible

• Less expensive

  Compared to other network models

• Not necessarily secure

Computer Roles in a Client/Server Networks

• Server

• Clients

• User

• Admin

Server features relative to clients

• More memory, processing,

  storage capacity

• Equipped with special

  hardware

• Complex design and

  maintenance

• Provides network

  management functions

Client/Server networks advantages relative to peer-to-peer networks

• User credential assigned

  from one place

• Multiple shared

  resource access

  centrally controlled

• Central problem monitoring, diagnostics, correction capabilities

• Optimized to handle heavy processing loads

• Can

  connect many

  computers on a

  network and more scalable

Network confined to a relatively small space. It covers a relatively small area such as a classroom, school, or a single building. It is also inexpensive to install and also provide higher speeds.

• LAN

• MAN

• WAN