FreeDOS is a free and open-source operating system that is compatible with Microsoft DOS. It is designed to provide a DOS-compatible environment for running legacy DOS applications. It includes a command-line interface and a variety of basic utilities, including text editors, file management utilities, and disk utilities. It also supports networking and can run a variety of DOS-based applications. FreeDOS is an excellent choice for those who need to run DOS-based programs on their modern systems, or for those who are looking for a lightweight, low-resource alternative to Windows.
Discontinued The last known build is from 2003. The last documented use as a commercially licensed product was in 2009.https: //en.wikipedia.org/wiki/IBM_PC_DOS#cite_note-16