workstation 1. A networked computer that is using server resources. 2. A computer that is connected to a mainframe computer. It is usually a personal computer connected to a local area network (LAN) that shares the resources of one or more large computers. Workstations differ from terminals or dumb terminals in that they can be used independently from the mainframe. They can have their own applications installed and their own hard disks. 3. A type of computer that requires a significant amount of computing power and is capable of producing high-quality graphics.