Operating System Explorer
Browse through historical interfaces and simulate iconic system behaviors.
Mainframe
GM-NAA I/O
Released in 1956 by General Motors / NAA
The first operating system, created for the IBM 704 to automate batch processing.
Launch EmulatorPC-DOS
MS-DOS
Released in 1981 by Microsoft
The definitive command-line operating system for the IBM PC era.
Launch EmulatorUnix
SunOS
Released in 1982 by Sun Microsystems
The high-water mark of BSD-style Unix for SPARC workstations.
Launch EmulatorCommodore
Commodore BASIC
Released in 1977 by Commodore / Microsoft
The resident operating system and language for the PET, C64, and VIC-20.
Launch EmulatorAtari
Atari TOS
Released in 1985 by Atari Corp
The Operating System for the Atari ST series, featuring the GEM desktop.
Launch EmulatorWindows
Windows 95
Released in 1995 by Microsoft
Revolutionized the desktop with the Start menu and taskbar.
Launch EmulatorQuantum
Q/OS
Released in 2030 by OmniOS Preservation
A speculative quantum operating system where files exist in superposition.
Launch Emulator