System and method for pursuiting data stored in portable computer

摘要

PURPOSE: A change history tracing system of information stored in a portable computer is provided to realize a fast and effective investigation about storing device of a high capacity. CONSTITUTION: A portable computer(10) respectively collects information about a logical structure of a file system. The portable computer compares a first data and second data. The portable computer confirms modified data(I3) changed in the first data. A server(20) transmits the first data by a request of the portable computer in the portable computer. The server receives the modified data.