PORTABLE DATA ACCESS DEVICE

摘要

A portable data access device is applicable to a data processing system. The portable data access device includes at least a first data access sector preset to be a read-only data access sector, for storing at least data and/or application programs executable by the data processing system; at least a second data access sector set to be a general data access sector; and a controller for interfacing with the data processing system and controlling data access to the first data access sector and the second data access sector. The data processing system may execute the application programs and/or access the data through the portable data access device, and the risk of modifying or damaging the data and/or application programs can be reduced by the read-only data access sector.