iMac is a line of Apple Macintosh computers.

The iMac is a range of all-in-one Macintosh desktop computers designed and built by Apple Inc.. It has been the primary part of Apple's consumer desktop offerings since its introduction in 1998, and has evolved through five distinct forms.

The International Association for Mathematics and Computers in Simulation (IMACS) has the goal to establish means of communication between researchers on simulation. It is incorporated in the United States and Belgium, with affiliates in other countries. IMACS organizes conferences, and publishes scientific journals and books in affiliation with commercial publishers.