A mobile workstation, also known as a desktop replacement computer (DTR) or workstation laptop, is a personal computer that provides the full capabilities of a workstation-class desktop computer while remaining mobile. They are often larger, bulkier laptops or in some cases 2-in-1 PCs with a tablet-like form factor and interface. Because of their increased size, this class of computer usually includes more powerful components and a larger display than generally used in smaller portable computers and can have a relatively limited battery capacity (or none at all). Some use a limited range of desktop components to provide better performance at the expense of battery life. These are sometimes called desknotes, a blend of "desktop" and "notebook", though the term is also applied to desktop replacement computers in general. Other names being monster notebooks or musclebooks in reference to muscle cars.