Full Title

Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity > Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer > to assure secure storage of data (address-based protection against unauthorised use of memory G06F12/14; record carriers for use with machines and with at least a part designed to carry digital markings G06K19/00) > in storage media based on magnetic or optical technology, e.g. disks with sectors (preventing unauthorised reproduction or copying of disc-type recordable media G11B20/00)