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The New York Stock Exchange (NYSE) and many other financial institutions run their most critical services and applications on Linux. The NYSE specifically uses RedHat Enterprise Linux because of its stability and support.

Linux is the most-chosen operating system in the U.K, France, Germany, and other European countries due to its open source programming. Major companies like LVM Insurance and Deutsche Bank rely on Linux's time-tested stability, transparency, high uptimes, and low maintenance. LVM Insurance in Muenster, Germany converted all 7,700 of its Desktop computers to Linux.

Reuters Group, PLC. converted their Reuters Market Data System to Linux stating that more than half of their 20 largest customers had converted to Linux.

The two big reasons why companies shift their critical computing or desktops to Linux: Price and Performance.

Linux wins bigger in the Data Center than on the Desktop, even in Europe, but there are many companies worldwide now considering conversion to Linux due to the rising costs of Windows software, the need to upgrade for each new Windows version, and performance concerns.

In response to the loss of Data Center space, Microsoft's Server 2008 can be installed as a Core Server without the standard top-heavy graphical interface. Will it help Microsoft's diminishing significance in the Data Center? Maybe, maybe not.

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Last Post by MattEvans
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For some reason I don't want develop for Linux. It usually lacks hi-level functions and you have to use fork(), shmget(), etc. You have much more free hand writing for Windows, and there is variety of tools with tips and diagrams so you don't have to be geek that much.

Yes, Linux is stable and security-oriented. Windows can be also. Performance is not that important in examples given in this article, it suits better for scientific grid-processing, embedded systems with limited resources, real time systems.

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Performance is not that important in financial transactions--where there are hundreds of thousands of transactions per minute??? Ok. Interesting.

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@ Cybulski - we ( people who develop on Linux ) have a little thing called 'libraries'.. There are lots of them, on Linux and Windows, for lots of different things; they usually provide a high-level interface. They're not a Windows-only concept.. ^_-

Developing in Linux is like developing in Windows, just without that ugly 'WinAPI thing' lurking in the corner, and with a plethora of other equally capable and myriadically various libraries and tools.. ( and those tools are often free ).

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