| 摘要 |
1. Method for the protection of software distributed by a supplier to users having available at least one data processing machine on which and only on which this software may be loaded and implemented, characterized in that it consists in : a) at the supplier's location : - recording a copy of this software on a first portable magnetic carrier such as a disc, designated as a mother disc, this software not being allocated to a particular on of the user's machines, - organising this mother disc so that it may not be duplicated directly, - and distributing a mother disc for each copy of software acquired by the user, b) at the user's location, and by means of a conversion facility : - in transferring the copy of software recorded on a mother disc on to a second duplicatable magnetic carrier, - organising this copy of software stored on this second carrier so that it may be executed only by a particular one of the user's machines, - and in performing a zero reset operation on the mother disc so that the same cannot produce another copy of software executable on another machine.
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