Different types of operating systems(O.S)

* 1 Proprietary
o 1.1 Acorn Computers
o 1.2 Amiga
o 1.3 Apollo Computer
o 1.4 Apple Inc.
o 1.5 Atari
o 1.6 BAE Systems
o 1.7 Be Inc.
o 1.8 Burroughs Corporation
o 1.9 Convergent Technologies
o 1.10 Digital/Tandem Computers/Compaq/HP
o 1.11 Fujitsu
o 1.12 Green Hills Software
o 1.13 Hewlett-Packard
o 1.14 Honeywell
o 1.15 Intel Corporation
o 1.16 IBM
o 1.17 International Computers Limited
o 1.18 LynuxWorks (originally Lynx Real-time Systems)
o 1.19 Micrium Inc.
o 1.20 Microsoft
o 1.21 Novell
o 1.22 Quadros Systems
o 1.23 QANTEL
o 1.24 RCA
o 1.25 RoweBots
o 1.26 SCO / The SCO Group
o 1.27 Unicoi Systems
o 1.28 Wind River Systems
o 1.29 Non-standard languages
o 1.30 Lisp-based
o 1.31 Other
+ 1.31.1 Other proprietary Unix-like and POSIX-compliant
o 1.32 SDS (Scientific Data Systems)
o 1.33 TRON Project
o 1.34 UNIVAC (later Unisys)
o 1.35 Wavecom
* 2 Non-proprietary
o 2.1 Unix-like
+ 2.1.1 Research Unix-like and other POSIX-compliant
+ 2.1.2 Free/Open source Unix-like
+ 2.1.3 Other
o 2.2 Non-Unix-like
+ 2.2.1 Research non-Unix-like
+ 2.2.2 Free/Open source non-Unix-like
* 3 Disk Operating Systems
* 4 Network
* 5 Web operating systems
* 6 Generic/commodity and other
* 7 For Elektronika BK
* 8 Hobby
* 9 Embedded
o 9.1 Personal digital assistants (PDAs)
o 9.2 Digital media players
o 9.3 Robots
o 9.4 Smartphones
o 9.5 Routers
o 9.6 Microcontrollers, Real-time
* 10 Capability-based
o 10.1 LEGO Mindstorms
* 11 See also
o 11.1 Category links
* 12 References
* 13 External links