How is cloud computing different from client-server?
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Author:  Naitik Soni [ Mon Aug 17, 2015 5:10 pm ]
Post subject:  How is cloud computing different from client-server?

How is cloud computing different from client-server?

Author:  Kuldeep Singh [ Mon Aug 17, 2015 5:33 pm ]
Post subject:  Re: How is cloud computing different from client-server?

Client server is a process where data processing is distributed between a client and a server. The best example of client/server is – emails and RDBMS based web applications. In simpler words, client server is a kind of application architecture whereas cloud computing is the way that defines how applications are hosted. Cloud is the latest technology that allows businesses to abstract software from the hardware, and scale up/down the applications as per the business demands.

Author:  walshmagger [ Wed Nov 01, 2017 12:17 pm ]
Post subject:  Re: How is cloud computing different from client-server?

"Cloud computing" is a blanket term meant to do two things: first, to abstract all possible uses of a client-server model behind a single term, as opposed to more specific use cases like "file servers", "database servers", "web servers", "application servers" etc.; and second, to abstract the server architecture itself, in terms of hardware, topology, location, and even ownership.

In a traditional client-server model, which is definitely still in common use today, a client connects to a server that performs a particular job. This server may host a database, or a series of file shares, or a web page. When the client connects to that server, there is an implicit understanding of the type of communication and data transmission that will ensue between the two computers. There may also be an understanding by the client, or the end user, of the capabilities of the server's hardware, and its limitations. This relatively "tight coupling" between the client machine and its server can pose problems for a sysadmin who needs to take down a server for maintenance; all the applications dependent upon resources provided by this server have to be pointed at another server, and not all applications and infrastructures are designed with this type of redundancy and fail over-tolerance in mind.

In a cloud server model, the hardware, topology, division of labor, and even number of actual machines involved is all abstracted behind a single endpoint. The analogy could be drawn to a modern "web application", as opposed to older generations of "website" which were more static. We might guess that there is an application server and a DB server behind the scenes, but we really don't have to care; the web server, as part of its job to serve the full application to users beyond the "edge", provides a unified endpoint allowing controlled access to all the data and services provided by other machines behind this front door.

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