Keane acquired the PatCom HIS from Professional Hospital Systems (PHS) in 1993. PHS had developed PatCom in the late 1970s for hospital client American Medical International. PatCom ran on Data General minicomputers and had a number of prestigious hospital clients. Keane later converted PatCom to UNIX and renamed it EZ Access. The acquisition of PatCom added PHS's revenue cycle capabilities to Keane's existing clinical offerings.