| 摘要 |
This invention relates to a universal mass storage information card comprising a first data storage portion having a circular geometry in the form of a disk and a second data storage portion physically detachable from the first data storage portion with the second data storage portion defining a geometrical area disposed within the periphery of the first portion and being concentric therewith, with the first data storage portion including software to verify user identification when the two data storage portions are combined and software to read and download information contained in the second data storage portion when the two are inserted as a combined unit into a data processing machine. In the preferred embodiment the information tracks of the first data storage portion form a spiral geometry extending into the second data storage portion and software is included in the mass storage information card in the form of an algorithm which identifies the sections of information track in the second data storage portion to which information can be written when separated from the first data storage portion. The invention also includes a drive assembly to enable data to be read from and transferred to the detachable second data storage portion of the mass storage information card when separated from the first data storage portion. |
