http://certbot.iykpqm7jiradoeezzkhj7c4b33g4hbgfwelht2evxxeicbpjy44c7ead.onion/fa/glossary
Operating System The operating system is the core software running on a computer. The most common operating systems are Windows, macOS, and Linux. Linux is subdivided into “distributions” like Ubuntu, Debian, RedHat, and many more. FTP The File Transfer Protocol (FTP) allows users to move files from one machine to another over the network.