Apparatus having a smart card accomodated by a diskette frame containing processor memory and battery power for interfacing with a standard diskette drive

An element which can be plugged into an EDP device, comprising:

• a card which is equipped with components, including a processor and data memory;
• a frame, having an exterior form, which is designed to accommodate said card;
• a first interface for transferring data between the element and the EDP device;
• and
• a second interface formed by contacts on the card and on the frame, for transferring data to and from the card;
• the exterior form of said frame being that of a diskette so that it can be inserted into a diskette station of an EDP device,
• said first interface between the element and the EDP device being designed in a standard fashion, so that data can be transferred using a standard read/write device already present in the diskette station of the EDP device;
• said frame carrying a battery for supplying current via the second interface to the components located on the card, and carrying an additional processor and data memory for providing the element with additional processor and storage capacity via a data link established by the second interface.