Distributed Operating System

A distributed system is a collection of independent computers that appear to the users of the system as a single computer

Goals

Boosting Performance

Enhancing Reliability

Scaling for the Future

Resourceful Utilization

Transparency

Flexibilty

Reliability

Perfomance

Scalability

Bus based multiprocessor

Switch based multiprocessor

Crosspoint switch

Omega switching network

Bus-Based multicomputers

Switched multicomputers

Grid

Hypercube

Network Operating System

True Distributed System

Multiprocessor Timesharing System