Computer for the control station of a machine, more particularly

Details Computer for the control station of a machine, more particularly Computer for the control station of a machine, more particularly

1992-07-10

1994-11-08

Cangialosi, Salvatore

Cryptography

Cryptanalysis

380 25, 380 49, 380 50, H04G 900

Patent

active

053634462

ABSTRACT:
The invention relates to a user verification system for a personal computer. In a preferred embodiment, the verification system is used to limit access to an operating system for the personal computer used to control a printing press. Access to the operating system is gained through a certification process which reads an identification code on a floppy disk placed in the floppy disk drive for the computer. Access to the operating system and other protected facilities of the computer is gained by inserting a pre-recorded disk into the floppy disk drive prior to booting the computer. The identification code or password is read by a Basic Input Output System (BIOS) procedure during start-up. If a valid identification code is not sensed by the BIOS procedure, then the operator will be denied access to the protected facilities of the computer. If a valid identification code is sensed on the floppy disk, the degree access to the computer facilities is based upon additional information encoded upon the floppy disk drive.

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"Die Intelligente Druckmaschine-demonstriert am Beispiel einer Leitstandtechnik fur die Zukunft," p. w2, No. 11, published Mar. 21, 1991.

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