Patent ID: 8020761

Claim:
A point-of-sale system comprising: a first monitor; a plurality of interchangeable bases, the plurality of interchangeable bases being adapted to receive the first monitor, the plurality of interchangeable bases being adapted to be selectively removable from the first monitor to permit the first monitor to be used with any one of the plurality of interchangeable bases, the plurality of interchangeable base units including a processing device having a different performance level for performing point-of sale operations, wherein the plurality of interchangeable bases are interchangeably connectable to a monitor based on performance requirements of the point-of-sale system; a processing device disposed within the housing; a radio frequency (RF) card reader, the RF card reader being disposed within the housing, thereby eliminating electrical connections associated with the RF card reader that are external to the housing; and a second monitor, the second monitor being disposed on a rear portion of the first monitor.