The Old School Emulation Center (TOSEC) is a retrocomputing initiative dedicated to the cataloging and preservation of software, firmware and resources for arcade machines, microcomputers, minicomputers and video game consoles. The main goal of the project is to catalog and audit various kinds of software and firmware images for these systems.

As of release 2013-04-13, TOSEC catalogs over 270 unique computing platforms and continues to grow. As of this time the project had identified and cataloged 564,988 different software images/sets, consisting of over 4.02TB of software, firmware and resources.

TOSEC-PIX is the second separate ancillary branch and includes computing and gaming resources such as scans of software and hardware manuals, magazine scans, computing catalogs, and videos.