Patent ID: 8156271

Claim:
A data processing device comprising: a processor; a mass storage device coupled to said processor, said mass storage device comprising a first segment of data area and a second segment of data area, wherein said first segment of data area is accessible when the data processing device is in a disk mode and wherein said first segment of data area and said second segment of data area are accessible when the data processing device is in a device mode; a communication interface coupled to said processor, said communication interface for receiving commands when the data processing device is in said disk mode, wherein the second segment of data area is accessible to another system through the communication interface when the data processing device is in said disk mode; a memory coupled to said processor, wherein said memory contains a set of machine instructions, when executed by said processor, for executing at least one command from said communication interface, and wherein the data processing device is capable of autonomous processing of data when in device mode and wherein the second segment of data area is not accessible to the data processing device when in the disk mode; a user interface coupled to said processor, wherein said user interface is configured to respond to a user input when said data processing device is in said disk mode, and wherein access to blocks in the second segment is performed at the block level by the another system and wherein locking of blocks in the second segment from access by the data processing system, when in the disk mode, is done at the block level; and wherein said at least one command comprises a command to access data in said mass storage device, and wherein the data processing device in device mode performs processing functions including at least one of presenting a calendar or presenting a list of contacts or presenting audio media or presenting video media and wherein the first segment is changeable in size when the data processing device is disk mode.