Stored data transmission for processing system - has central computer with infra red transmitter receiver communicating with distributed displays

摘要

The central data processing system has a computer (10) that is bus coupled to a number of transmitter/receivers (12) that are distributed around the organisations e.g supermarket. Individual points within the store can have an infrared transmitter/receiver (32) that is bus coupled to a number of different displays (26) mounted on the shelves. Other separate transmitter/receivers (28) are located on table surface. Data relating to prices is transmitted by the central system to the distributed units. ADVANTAGE - Simplifies data handling in large store.