What is distributed system and advantage

5) Distributed System  -
A distributed system is a collecting of physical,separate,hetrogeneous computer system that are network to provide users with access to various resources.
Access to a share resources increase computation speed,functionality,data availibility and reliability.
Distributed system depends on network for their functionality.
Network vary by the protocol used distance beween nodes.
Network are characterized based on distance between there nodes.
I. Lan connect computer within a room,building,campus.
II. Man connect computer within a cities.
III. Wan connect computer within many cities or countries.
IV. Pan connect device in several feet distance  like- bluetooth connectivity.
The media to carry network include copper wire,fiber optic and wireless communication – satellite,microwave dishes,radio transmission.
Distributed operating system manage a group of computer that could be linked and made to communicate with each other.
Advantage of distributed system –
Resource sharing facility at each site
Reliability if one site fail in a distributed system the remaining site can continue operate.
Reduction of the load on the host computers.
Reduction of delay in data processing .
Better service to the client
Ex. Plana & Locus.