Networked electronic device for acquiring updated values of e.g. trading goods, compares new and old values of good and compares difference with user defined threshold, to alert user

摘要

A microcomputer (3) compares the old values of trading goods, stored in a memory (5) with the new values and compares the difference against user defined threshold received through input unit (6) and alerts the user depending on the result. The microcomputer periodically updates the memory.