Technical Operating System

The Technical Operating System is a parody of real-life's Microsoft Disk Operating System (MSDOS). The latest version of TOS mentioned in-game is TOS 3.0. It may also be "Windchime;" both OS's released in 1998. Users of the TOS are usually refered to as "TOSsers," which is slang for a person who masturbates. On the GTAIV internet, TOS is refered to as "To$$", which is a reference to real-life's "Micro$oft" spelling on computing websites and message boards. This spelling also suggests they are very focused on making money, like Microsoft. TOS' competition is Fruit Computers.