A DATA INFORMATION SYSTEM

摘要

A data information system uses a record carrier (1) for use with issuers A-C having issuance terminals (2). The record carrier is provided by a provider (Z). The card has a plurality of tracks (10-12) each track being capable of supporting ''buckets'' of data indicative of an issuer A-C and of an event, e.g., credit points, associated with the issuer A-C. The event data is correlated with issuer data at redeemer stations (X, Y), each redeemer station having a reader (5) arranged to correlate the number of credit points with a particular issuer. The invention also discloses an arrangement for writing data to the record carrier and for reading data from the record carrier, and also a data information system incorporating the same. Furthermore the invention discloses a device for cleaning the record carrier which may be in the form of a credit card or the like.