SOFTWARE UPDATE PROCESSING DEVICE, SYSTEM, ITS METHOD AND PROGRAM, AND RECORDING MEDIUM WITH THE PROGRAM RECORDED THEREON

摘要

PROBLEM TO BE SOLVED: To provide a system that can efficiently update software. SOLUTION: When new software is stored in a server device 400, the software is stored in a preset free area 441B, and time information on the date and time of storage is stored in association with update filename information on a free area 441B to set a new free area 441B. When started, a terminal device 300 sets update date information and update filename information on the next update software both acquired in advance from the server device 400 at software storage, in update request information using an If-Modified-Since header of HTTP, and sends it to the server device 400. The server device 400 sends software stored in an update data area 441A whose update filename information has time information newer than the update date information to the terminal device 300 as update software. COPYRIGHT: (C)2005,JPO&NCIPI