Penn Center Systems, Inc. About Us Successful businesses recognize that differentiating their guest service experience is crucial to building consumer loyalty and driving top-line sales growth. As a leading systems provider, PCS is uniquely positioned to help our customers achieve success with world-class hardware, application software, professional services and ongoing support POS Complete management solutions for retail, hospitality, and grocery. PCS offers quality solutions from - POSitouch, Dinerware, NCR Advanced Check-Out Solution (ACS), and Self Service Check-Out, CAP Retail.