A workstation is a powerful computer designed for technical or scientific applications. Workstations are typically used by one person at a time but are more powerful than a standard desktop computer, capable of handling complex tasks such as graphic design, 3-D modeling, and intensive computational processes. The incorrect options describe other types of computing devices, not a workstation. Mobile phones and tablets are portable devices with less computational power and are generally used for communication and entertainment, while servers are powerful machines that serve data to other computers on a network.