Patent ID: 8578063

Claim:
A portable hard drive of a size which may be held in the palm of a hand for communicating with a host device comprising: at least one port configured to communicate with a host device; a mass storage hard disk; processing circuitry operatively coupled to said port and said hard disk and configured to calculate information relating to a time of last user write in response to a message indicating the ejection of the hard disk from the host device, the processing circuitry being directly coupled to said port and to said hard disk; and a display operatively coupled to said processing circuitry and configured to display the calculated information relating to a time of last user write and information relating to the amount of available storage space on the hard disk, wherein the processing circuitry is configured to calculate information relating to a time of last user write by determining a type of file system storing a file on the hard disk in which the last user write is stored and obtaining time and date information based on the determined type of file system.