Client-server side & server side processing
What is Client-sever side processing?
Where either the client or the server can process data
Give two reasons why client-server processing may be used?
- To lighten the load on a server
- There's software on a clients device that can process their info
Give benefits of client side processing
- Executes data quickly
- Webpages can immediately respnd to users
- Removes unnecessary data transfer improving security (decreases chances of interception)
What is server side processing?
Where clients send a server requests for the server to process them. They can process large volumes of data.
Why can server side processors process large volumes data quickly?
Due to the high amount of RAM & storage it has
During interactions with clients and servers, what decisions are made about what processeing occurs on the client side
- Usability
- Securtiy
- Performance
Give benefits of using server side processing
- Can perform much larger and more and faster calculations than clients
- More secure
- Not browser dependent, execution of code(HTML, CSS, Javascript) occurs on the server not the user browser
- Doesn't require plugins, so it requires solely on the server and doesn't need you to enable plugins e.g. Javascript, flash etc.
Give disadvantages if server side processing
- The load on the server is increases, which can potentially decrease the performance of the server
- May cause latency, leading to slower response times
- If the server shuts down, the website can become unavailable or there could be a loss of functionality
- Can be complex to implement
Give disadvantages of client-side processing
- Less secure as code can be seen by users (Sensitive info can be leaked)
- Heavily (javascript) browser dependent. (If browsers don't support javascript, functionality may become inaccessible)