| 摘要 |
A system for updating a control device includes a user's portable programmable media having a data storage device, and a primary controlling device including a computer having a data storage device for storing data. A primary reader/writer communicates with the primary controlling device, and the primary reader/writer transfers control data and transactional data from the primary data storage device to the user's portable programmable media. A secondary controlling device includes a secondary computer and a secondary data storage device for storing data. A secondary reader/writer communicates with the secondary controlling device and reads the control and transactional data included in the user's portable programmable media, transferring the data to the secondary controlling device for authenticating, completing a transaction, and storing at least part of the data in the secondary data storage device.
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