This depends on the type of client. In most cases, your computer is what’s known as Fat Client, meaning it does the bulk of the data processing. There’s a good reason for this. Web servers may be accessed by thousands, even millions of clients at the same time. Managing calculations for all of those computers would slow the server or even crash the website. Meanwhile, your computer is only doing your work. It has plenty of processing power left over. Thin clients, on the other hand, are computers that rely on the server to do the crunching for them. In this case, the computer you use simply logs into a central server and runs all of its programs from there. Cloud computing applications, such as Google Docs, use this method. A computer can also be a hybrid client, sharing the processing and storage workload with the server.