Patent ID: 8719498
Filing Date: 2014-05-06
Classification: G06F

Abstract:
1. An external data storage device that connects to a user terminal device, the device comprising: a data storage unit configured to store data files; a network interface unit configured to connect the data storage device to user terminals, comprising the user terminal device, and receive, from the user terminal device, a request for a data file requested by a user of the user terminal device; a system data storage unit configured to store a plurality of application software configured to process the data files, and store management information comprising relations between data types of the data files, operating system types of operating systems of the user terminals, and information of the plurality of application software; a control unit configured to receive, from the user terminal device without user manipulation, an operating system type of an operating system of the user terminal device, determine a data type of the requested data file, and determine an application software configured to process the determined data type on the operating system of the user terminal device, based on the determined data type, the received operating system type, and the management information; a central processing unit configured to process the requested data file, using the determined application software, to generate a processing result; a random access memory configured to load the requested data file from the data storage unit, load the determined application software and the management information from the system data storage unit, and temporarily store the processing result; an output determination unit configured to determine whether to output, to the user terminal device, the requested data file and the determined application software, or the processing result; and a server operating system installed therein that is configured to simultaneously process requests from the user terminals.