Abstract: A portable electronic apparatus for providing computer data or a computer program to a mobile computerized device, and an associated method, is provided. A portable apparatus of the invention comprises an interface means adapted to an interface of a mobile device and adapted to sense at least one input, a memory means carrying thereon a computer data or computer program intended for the mobile device, a control means responsive to an input to the interface means and a data communication means arranged to communicating at least part of the computer data or computer program over the interface means in response to control input from the control means. A method for providing a portable electronic apparatus for providing computer data or a computer program to a mobile computerized device includes steps for carrying out the functions of the various means of an apparatus according to the invention.

Abstract: The invention relates to a device wherein a handheld battery-powered unit communicates with an external handheld peripheral unit by direct electrical contact, wherein said battery-powered unit at least comprises a processor and a storage medium or media, and also has a communication port for peripheral units, characterised in that said handheld peripheral unit comprises at least one or more battery cells and a data chip, wherein the data chip of the said peripheral unit at least comprises a storage medium in which there is stored software that can be exchanged with the battery-powered handheld unit.