Final answer:
A Minicomputer is a type of computer that serves as a server to support end-users and provide an array of services such as database management and application software delivery. These computers played a significant role historically but have been largely replaced by powerful personal computers.
Step-by-step explanation:
The computer referred to as a server and is used to support end-users in tasks such as retrieving data from a database or providing application software is a Minicomputer. Minicomputers offer multi-user capabilities but have less computing power compared to mainframes. They were an essential part of computing history, especially in the 1970s and 1980s, providing services to a variety of government and private sectors. While today's powerful personal computers have largely replaced them, they played a crucial role in making computing technology more accessible and paving the way for the widespread use of computers in various applications.