Magnetic, optical and digital data carriers of all kinds (magnetic, optical, electronic, mechanical), including in particular floppy discs, magnetic tapes, optical discs, CD-ROMs, CD-I and DVD; data carriers of all kinds containing programmes, for teaching purposes

Magnetic, optical and digital data carriers of all kinds (magnetic, optical, electronic, mechanical), including in particular floppy discs, magnetic tapes, optical discs, DC-ROMs, CD-I and DVD; data carriers of all kinds containing programmes, for teaching purposes

Magnetic, optical and digital data carriers of all kinds (magnetic, optical, electronic, mechanical), including in particular floppy discs, magnetic tapes, optical discs, DC-ROMs, CD-I and DVD; data carriers of all kinds containing programmes, for teaching purposes