What Download is
To transfer a file or files from one computer to another, for example, from a server to your desktop computer. Download is the opposite of upload. There are a few methods of downloading on the Internet: HTTP, FTP and e-mail attachments are the most common. When you "load" a Web page into your browser, you are essentially "downloading" the page from the server it is hosted on. One of the most resourceful functions of the Internet is that you can download almost any type of computer file or program. Many of these files are shareware, which means you can try them before you buy them. Want to try downloading something?
The meaning of Server farm
A group of networked servers that are housed in one location in order to streamline internal processes, distributing the workload between the individual components. In other words, a server farm expedites computing processes by harnessing the power of multiple servers. The farms rely on load-balancing software that tracks demand for processing power from different machines, prioritizes the tasks, and schedules and reschedules them depending on the priority and demand that users put on the network. When one server in the farm fails, another can step in as a backup.
Combining servers and processing power into a single entity has been relatively common for many years in research and academic institutions. Today, more and more companies are utilizing server farms to handle the enormous amount of computerized tasks and services they require.