A smart card comprising: (v) a sheet of supporting material (102); (vi) an electrical contact means (103) provided on said sheet of supporting material and adapted to provide an electrical contact with a smart card reader in use; (vii) one or more integrated circuits supported by said sheet; and (viii) interface means comprising a serial data interface and at least one parallel data interface arranged such that in use, data stored in said integrated circuits may be accessed via said parallel data interface.
