Systems Concepts, Inc. (now the SC Group), was a company co-founded by Stewart Nelson and Mike Levitt focused on making hardware products related to the DEC PDP-10 series of computers.

When DEC cancelled the Jupiter project in 1983, Systems Concepts hoped to sell their machine to customers with a software investment in PDP-10s.

They also overpriced; believing they were competing with the KL10 and VAX 8600 and not startups such as Sun Microsystems building workstations with comparable power at a fraction of the price.

Nevertheless, a number were purchased by CompuServe, which depended on PDP-10s to run its online service and was eager to move to newer but fully compatible systems.

It can perform up to 8 times as fast as a DEC KL-10, and it also supports more physical memory, a larger virtual address space, and more modern input/output devices.