A server is a type of computer, which usually can expect to have a heavy workload. Servers get their name from their purpose, which is to provide services to other computers over a network connection. The computers that request services from the server are called "clients." Servers come in all shapes and sizes. The tower server is one of the simplest configuration of server hardware.
The "tower" of "tower server" refers to the case of the computer. Although a tower sounds as though it is a big computer, in fact the tower server is one of the smallest types of server. The case looks the same as a tower PC. There is only one category of server smaller than the tower server, and that is a micro server.
A tower server is a standalone piece of hardware containing all the elements required to respond to requests from other computers. Servers have to connect to a network to perform their function, and the tower server has an integrated network adapter to enable network connections. Programs run on a processor and files are stored on hard drives, the same as with a PC. Also like a PC, the tower server has an integrated fan to prevent the electronics inside the case overheating.
The tower server and the micro server are not the only types of server hardware. Rack-mounted servers are slotted into tall cabinets like shelves. Blade servers fit into a specialized chassis in the same way as network cards fit into an expansion slot of a PC. Because of the overhead of their special housing, blade servers and rack-mounted servers are better suited to the budgets of large companies requiring many servers.
Tower servers are suitable for small companies. They are easy to install and do not need a special server room. They can be plugged into the network from any location in the office, similar to a PC. Some tower servers are expandable, enabling extra memory and storage to be added. However, their ease of use means a second server can be easily added to a network to increase capacity. Larger companies requiring ten or more servers would gain cost benefits from blade or rack-mounted servers.
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