Distributed operating System

What is Distributed operating System ?

A distributed operating system is an operating system that runs on several machines the purpose of distributed operating system is to provide a useful set of services.
It is a software collection of independent, networked, communicating, and physically separate computational nodes.
They handle jobs which are serviced by multiple CPUs.
Each individual node holds a specific software and that software is a subset of the global aggregate operating system.
Here, several independent interconnected computers communicate each other by using a shared communication network.
All the independent systems have their own local memory and the processors communicate with one another through various communication lines, like telephone lines.
The Distributed Operating System also called loosely coupled systems.
A distributed operating systems are proposed to make a collection of resources on multiple machines operational by a set of loosely cooperating users those running independent tasks.
Distributed operating systems are hard to design because they face inherently hard problems, such as synchronization.
The machines that are controlled by a distributed operating system are connected by high quality network, such as a high speed LAN.
By using Distributed operating System user can access the files or data remotaly by sitting anywhere in the world with that network.
In the Distributed operating System size of processors in system are differ in size and function.

Advantages of Distributed operating System

Remote access available.
fastest resource sharing.
less time taken for data processing.
Failure of one will not affect the other network communication, because of independent systems.
Less load on the host computer.
High speed data transfer with one another via electronic mail.