| 摘要 |
System for protecting the access to a main computer, comprising: a main computer (1) which can be coupled to one or more communication means (3) and which is provided with authorization means;(2) a peripherally arranged device (5) that can be coupled to the main computer (2) via a communication line (4); and an authorization element (7) connected to the communication line (4) and the peripheral device (5) and through which data transport takes place between main computer (1) and peripheral device (7), wherein an operation is performed by the authorization element (7) on a signal provided by the authorization means (2) and wherein the result of the operation is checked by the authorization means (2) in order to authorize access to the main computer. <IMAGE> |
