MasterBooter
Boot manager which can be used to install and maintain operating systems on a PC. Supports many operating systems. Shareware and registered versions available.
http://www.masterbooter.com/

SIGOPS: Operating Systems
Addresses issues dealing with operating systems research and development.
http://www.sigops.org/

Power Components Bv
CDM-M6 4.4CL2+,DA-34-01E,DVD M2 5.6/31,DVD M3 4.6,LOADER CD CHANGER,LOADER COMAND APS,IB-DAR1010,IB-DAR1260,IB-DAR1300,IB-DAR1320,IB-DAR1360,IB-LOG1170
http://www.powercomponents.nl

DBLP Bibliography: Operating Systems
Links to many operating systems journals on the web.
http://www.informatik.uni-trier.de/~ley/db/os.html

A Catalog of Operating Systems
Classified, alphabetic listing of most operating systems, past and present, distributed commercially or reported in English-language literature, platform oriented. From Computer Science 258, West Virginia University.
http://www.csee.wvu.edu/~jdm/classes/cs258/OScat

WinClean
Registry cleaner, Disk cleanup and Startup manager application
http://www.batl.com/winclean.html

MIT LCS Parallel and Distributed Operating Systems
MIT CSAIL Parallel and Distributed Operating Systems homepage
http://pdos.csail.mit.edu/

Easysoft
Operating systems are defined here. All type of operating systems like windows,unix,linux,debian are defined here.open bsd as well as bsd is described here
http://in.geocities.com/easysoft2002/

Operating Systems Through Time (8-bits)
A brief history of 8-bit operating systems.
http://www.armory.com/~spectre/tech.html

ND SatCom
More than 25 years of experience have positioned ND SatCom as leading global supplier of satellite based broadband VSAT, broadcast and defence communication network solutions.
http://www.ndsatcom.com/