Is there an operating system beyond Windows, Linux, or macOS? Actually, there are many, and we've dug to find some of them ...

The setup program was primarily written as an MS-DOS application but was designed to run on three different operating systems to perform distinct tasks.

We were impressed, though, with Redbean 2.0 which uses a single executable file to run a webserver — or possibly other things — on six different operating systems.

Creating a bootable USB drive is a cornerstone skill for anyone interested in exploring different operating systems or working in system administration. A bootable USB drive allows a user to boot into ...