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The two most interesting are AT&T:The largest US telecommunications provider. o provisioning systems o systems for rapid network recovery after failure Autodesk: A large number of major number of application in the CAD domain Ericsson:o server platform. o TDMA-CDMA HLR o GSM-TDMA-CDMA mobility gateway Google: web search engine, etc¡£ HP: Here is a tiny fraction of HP&££39;&££39;s C++ apps: o C, C++, Fortran90 compilers, and linker for the new HP IA64 platform (these add to more than 1 million lines of C++ code). IBM: o OS/400. o K42: a high performance, open source, general-purpose operating system kernel for cache-coherent multiprocessors. Intel:o Vtune performace analysis software o compilers and optimizers o lots of chip design and manufacturing software JPL (Jet Propulsion Lab, NASA): Mars rover autonomous driving system (incl. scene analysis and route planning). C++ on Mars! Also lots of supporting software "on the ground" (i.e. Earth). Microsoft:o Windows XP o Windows NT (NT4 and 2000) o Windows 9x (95, 98, Me) o Microsoft Office (Word, Excel, Access, PowerPoint, Outlook) o Internet Explorer (including Outlook Express) o Visual Studio o SQL Mozilla: Firefox browser and Thunderbird mail client (open source) MySQL: MySQL Server (about 250,000 lines of C++) and MySQL Cluster. Arguably the world&££39;&££39;s most popular open source database Nokia: o Mobile Communications radio-station/internet bridges: FlexiGGSN (Gateway GPRS Support Node) and FlexiSGSN (Server GPRS Support Node). o MSC/HLR Sun: o The HotSpot Java Virtual Machine is written in C++ Symbian OS: rationale: "[...] using C++ for all system code, from the kernel upwards." 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