An improved apparatus for portable interchangeable data terminals and peripherals includes a terminal adapted to receive information from a pen inputing device and a docking mechanism having a terminal receiver for selectively receiving the terminal. The terminal receiver includes a handle extending upwardly therefrom, a base extending laterally across the docking mechanism, and open channel members extending upwardly from each side of the base. A rear portion of each of the channel members may carry at least one roller guide and/or a central portion of each of the channel members may carry at least one roller guide disposed to contact a respective lateral edge of the terminal as the terminal is received by the docking mechanism. The base has a guide and a receiver connector configured to operably and respectively connect to a tab and a terminal connector of the terminal, as the terminal is received by the terminal receiver such that information is processable from the terminal to peripherals. The handle is inclined back from the open channel members. The base carries a spare battery charge station at a rear thereof.