Portable Data Terminal

A portable data terminal, or shortly PDT, is an electronic device that is used to enter or retrieve data via wireless transmission.

They have also been called data capture mobile devices, batch terminals or just portables.
hey can also serve as barcode readers, and they are used in large stores, warehouses, hospitals, or in the field, to access a database from a remote location. Others have a touch screen, IrDA, Bluetooth, a memory card slot, or one or more data capture devices.
PDT's frequently run wireless device management software that allows them to interact with a database or software application hosted on a server or mainframe computer.