Patent ID: 8560540

Claim:
An information search system comprising: reception means for receiving parameters including search target condition information indicating a condition to be searched, search destination information indicating a file which is to be accessed by using a disk I/O or a memory, which is a search destination of a source information to be searched, and a source information name of the source information to be searched, wherein the source information to be searched is stored in either the file which is to be accessed by using the disk I/O or the memory; a management table which stores a name of a memory area and memory area information indicating the memory area in association with each other; search means for searching the management table for a name of a memory area which matches the received source information name of the source information to be searched when the received search destination information indicates the memory as the search destination; and acquisition means for acquiring information which matches the received search target condition information from a memory area indicated by memory area information associated with the retrieved name of the memory area when the search means retrieves the name of the memory area which matches the received source information name of the source information to be searched.