Shock-resistant magnetic storage medium for a portable electronic device

A portable electronic device comprising:

• a housing;
• and
• a magnetic storage medium installed in said housing and including
• a power converter adapted for converting electric power from a power source to result in a power signal,
• a magnetic disk assembly including a magnetic recording unit for recording data, and a read/write mechanism for reading data from and writing data to said magnetic recording-unit, and
• a circuit protection module including
• an acceleration sensor for generating output signals that indicate a falling state of said housing,
• a switch coupled between said power converter and said magnetic disk assembly and operable so as to make or break a circuit connection between said power converter and said magnetic disk assembly, and
• a processor coupled electrically to said acceleration sensor, said switch, said power converter and said magnetic disk assembly, and responsible for controlling operations of said magnetic disk assembly,
• said processor further controlling said switch to break the circuit connection between said power converter and said magnetic disk assembly based on the output signals from said acceleration sensor so as to interrupt supply of electric power to said magnetic disk assembly when said housing is dropped.