Data security system

A data security system to prevent unauthorised access to data which is held on a data medium, preferably a disc-shaped data medium such as a CD-ROM, a diskette or a hard disk, with a code marking (4), which is on the data medium itself or an additional data medium, is in the form of a code card (3)...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	BUTZKE, GUENTER, 12559 BERLIN, DE, SCHIMKO, RICHARD, DR., 10179 BERLIN, DE, FISUN, OLEG IVANOVICH, , MOSKAU/MOSKVA, RU
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE CALCULATING CHECKING-DEVICES COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING GENERATING RANDOM NUMBERS PHYSICS REGISTERING OR INDICATING THE WORKING OF MACHINES TIME OR ATTENDANCE REGISTERS VOTING OR LOTTERY APPARATUS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!