Prior to the introduction of personal computers, businesses utilized minicomputers for local computers, with users connected to the minicomputer remotely via terminals. The minicomputers were often connected via computer networks to enable distributed systems–software made up of components, located or distributed on the network computers, which communicate via messages to achieve a common purpose.
As the speed and storage capacity of personal computers increased, as their cost decreased, and as Apple and Windows operating systems developed, the personal computer replaced the minicomputer for local and network computing.
The networks which began as local hard-wired networks grew rapidly by utilizing telephone networks and eventually evolved to include wireless connections. Thus, local computing grew to become wide area computing, and today, the network has expanded to include the entire Internet.
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