This is a copy of The Old School Emulation Center (tosecdev.org) maintained by Jason Scott at archive.org. It contains software, firmware images, documentation, texts, and much more for nearly 200 computer systems, from the Sinclair ZX Spectrum to the NCR Decision Mate V to the Kaypro II. If you're a retrocomputing enthusiast (or you're tasked with resurrecting a legacy machine for some reason) you'll want to poke around in here, you might find something helpful.