ARTICLE SALES DATA PROCESSOR, SWITCHING METHOD FOR ARTICLE SALES DATA PROCESSING PROGRAM, AND COMPUTER-READABLE STORAGE MEDIUM STORED WITH SWITCHING PROGRAM OF ARTICLE SALES DATA PROCESSING PROGRAM

摘要

PROBLEM TO BE SOLVED: To speedily and accurately switch an educational program to/from practical program. ;SOLUTION: The educational program (PRGe) on an article sales data processing and the database (DBe) are stored in a first storage area AR1 in a host machine. The practical article sales data processing program (PRGr) and the data base (DBr) are stored in a second storage area R2 which is not affected by the execution of the educational program when the educational program is executed in a compressed state. The educational program and the database are deleted after educating the host machine. Thus the practical article sales data processing program and the database are formed so that they can be restored and stored in the first storage area while they are defrosted.;COPYRIGHT: (C)1999,JPO