Uploaded March 2020 | Updated September 2026, 3 weeks ago
I've always wanted a Convergent NGEN / Burroughs B25, and I recently acquired one on eBay that looks like it might be decent. It's going to take some work to get it going. This was a unique PC, running an operating system called CTOS (or BTOS). The PC is modular and the modules can be easily separated. It's an 80186. But it's also really weird -- 36V power brick, funky keyboard connectors, keyboard routed through the monitor, etc. It's going to take some time to get this going. In this video I spend some time introducing the project and then I tear down the FDD / HDD model. For more vintage computer projects, see smbaker.com
I've always wanted a Convergent NGEN / Burroughs B25, and I recently acquired one on eBay that looks like it might be decent. It's going to take some work to get it going. This was a unique PC, running an operating system called CTOS (or BTOS). The PC is modular and the modules can be easily separated. It's an 80186. But it's also really weird -- 36V power brick, funky keyboard connectors, keyboard routed through the monitor, etc. It's going to take some time to get this going. In this video I spend some time introducing the project and then I tear down the FDD / HDD model. For more vintage computer projects, see smbaker.com
