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LEO I (Lyons electronic office I)
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MIT‘s Tape Director operating system
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General Motors Operating System
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GM-NAA I/O
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Atlas Supervisor
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University of Michigan Executive System (UMES)
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SHARE Operating System (SOS)
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IBSYS
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Compatible Time-Sharing System
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Atlas Supervisor
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Exec 8
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THE multiprogramming system
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OS/360
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Michigan Terminal System (MTS)
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Airline Control Program (ACP)
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TENEX (Bolt, Beranek and Newman
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DOS-11
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RSTS-11
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RDOS
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Эльбрус-1 (Elbrus-1)
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SINTRAN III
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Sixth Edition Unix
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Cambridge CAP computer
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OASIS operating system
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UCSD p-System
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Atari DOS
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86-DOS
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Acorn MOS
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Commodore DOS
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Lisa Office System 7/7
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Mac OS
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Windows 1.01
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Version 9 Unix
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Windows 2.0
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SpartaDOS X
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EPOC
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Windows 3.0
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Linux
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Windows 3.1
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FreeBSD
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NetBSD 1.0 (First multi-platform release, October 1994)
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Windows 95
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Mac OS 7.6 (First officially-named Mac OS)
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Mac OS 8
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Windows 98
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Windows 98 (2nd edition)
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Windows 2000
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Windows XP
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Red Hat Enterprise Linux 2.1 AS
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Red Hat Enterprise Linux 3
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Linux 2.6.8
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Solaris 10
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Windows Vista
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Bharat Operating System Solutions
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Fedora 10
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Windows 7
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iOS 4.2
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Android 4.0
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Ubuntu 12.10