Minicomputers evolved from specialized process control computers. The first genuine minicomputer appeared in 1962. Some of the machines are Hughes HCH 201 and Arma Microcomputer. Minicomputers are designed on a modular basis with smaller functional units than standard computers. So the user need to acquire only as much store or processor options as required with the knowledge that future small increments can be made when desired.

Minicomputers have large memory sizes and faster processing speeds than the microcomputer though they cannot beat mainframe systems. They are also called workgroup systems as they are suitable for small workgroups.

Components

Store is nothing but memory in minicomputers. Stores can be core storage or semiconductor storage. The magnetic core store is commonly used as main store in minicomputers. Information is held on small magnetic toroids in this store. Semiconductor memories are more compact and faster than magnetic core stores. Some minicomputers have a section of read only memory as well. Minicomputer
processor is small but versatile.

Advantages

• Extensive problem solving capabilities
• Higher processing speed
• Operating system supports multitasking
• Ability to serve as network server