Epos or EPOS may refer to: Science and technology Electronic point of sale, technology which enables an efficient recording of the sale of goods or services to the customer Embedded PowerPC Operating System, an IBM product OpenEPOS, in the comparison of real-time operating systems Organisations Epos Ltd, a British loudspeaker manufacturer Epos (watch manufacturer) Emergency Physician Online Support, a group of physicians providing emergency medical services support EPOS Audio, based in Denmark, part of Demant Arts and entertainment "Epos", a song by Zedd on Clarity Elaine Paige on Sunday, a show on BBC Radio 2 Epic poem or epos Other uses Mikoyan-Gurevich MiG-105, also known as EPOS, a proposed Russian spaceplane Epos (library ship), a floating library in Norway Evektor EPOS, an electric-powered airplane