Abstract: The invention relates to a device for displaying information, data and/or input elements on an interface (4), in particular on a screen, with at least one register (1) for displaying a subset of information, data and/or input elements, with the at least one register having a selectable, sensitive area on the interface and with means for showing the content (2) of the at least one register (1) on selection of the sensitive area (11) of the register (1).

Abstract: The invention relates to a scrolling facility for moving information (I) shown in a display area (3), with recognition means for identifying higher-ranking elements (1) from the displayed information (T) and fixing means for fixing the position (Fix) of at least one higher-ranking element within the display area, with the fixing means being embodied such that the at least one higher-ranking element remains fixed while at least one of the subordinate elements (2) assigned to the higher ranking element (1) is visible in the display area (3).

Abstract: A chip card has a program execution unit and a memory for at least one program that can be reloaded as a function of the application. In every reloadable program, first command instructions having absolute address parameters that refer to memory areas not occupied by the reloadable program are separated from second command instructions having absolute address parameters that refer to the memory area occupied by the reloadable program. It is possible for the reloadable program to be reloaded as a function of the application at any desired start address in the memory and to be adapted to that start address by the program execution unit. In particular, the need to create different reloadable program versions for possible application-related start addresses is dispensed with.

Abstract: A data processor is adapted, in particular with respect to the microcode, in such a way that the execution of standard commands of the processor which are loaded in a user memory area and request reading or writing access to the content of memory cells is inhibited. In the operating system memory area there is a memory area access table, in which there is stored the address area authorized per user memory area for the commands there. Finally, there is an additional program routine which is called up by a command loaded in a user memory area and requesting reading or writing access to a memory cell, and checks by means of the memory area access table (before execution) whether the requested access to a memory cell lies in the authorized address area. If it does not lie in the authorized address area, the additional program routine inhibits the execution of the command.