JPS5692639A - File access processing system - Google Patents

Abstract

PURPOSE:To increase the file access efficiency, by sectioning the file corresponding to the file number information read out from the list name table into a plurality of subreal files, and providing the subreal file table. CONSTITUTION:When the terminal 1 designates the list name and the record information is requested for access, the address counter 6 is advanced, and when the information read out from the file 7 of the list name table 5 is in coincidence with the designated information, the counter 6 is stopped with the output from a comparator 10. In this case, the iD number read out from the file 8 is fed to a comparator 16. An address counter 12 receives the coincidence information from the comparator 10 and accesses with a subreal file table 11. When the iD number is read out from a file 13, the counter 12 is stopped, and the information read out from the table 11 is fed to the processing section 19 via a register 17. The OS20 of the processing section 19 makes exclusive control based on the number of the file 14, and when this number is usable, it is informed to the file usage control section 18, and the terminal station number is written in the file 15.