NETWORKING:
A distributed system is collection of processor that don't share memory peripheral device or a clock instead, each processor has its own memory and clock and the processor communicate with one another through various communication other such as high speed buses are networks.
The processor in the system are connected true a communication network, which can be configured in a number of different ways. The network may be fully or partialy connected. The communication network design must consider message routing and connection strategies and the problems of contention and security. The innovation of the world wide web was to create a new access method for information sharing. It improved on the existing file transfer protocal (FTP) and network file system protocal by removing the need for a user to login before she is allowed to use a remote resources. It defined a new protocal, Hyper text transfer protocal (http), for use in communication between a web server and web browser.