In this paper, I propose a conceptual foundation for information systems based on three propositions:

P1: Information systems improve an entity’s ability to attain its goals

P2: Information systems improve the ability of entities to cooperate on shared goals

P3: Information systems transform entities in intended and unintended ways.

I apply an evolutionary-historical analysis, a variation of historical analysis, to the emergence of humans’ major information processing capabilities to trace the development of information systems to establish the propositions. I identify some research questions directly arising from the three propositions and advance a case that these propositions are potentially a sufficient conceptual foundation for IS research.