with the microprocessor production, low cost, compact structure of the CPU and peripherals connected to provide a framework for stable and reliable hardware, embedded systems development restrictions on the outstanding performance bottlenecks in the software. Although the late 1980s and started a number of embedded operating system, there are relatively well-known Vxwork, pSOS, Neculeus and Windows CE. But these are specific operating system product commercialization, the high price of many low-end products that discourage small companies; In addition, closed source code is also a major constraint on the developer's enthusiasm. In addition, the combination of domestic situation, the current state of their own operating system support for an open-source LINUX promotion provided broad prospects for development. Also, on the upper application developers, embedded systems is needed is a set of highly concise and friendly interface, reliable, widely used and easy to develop, multi-tasking, and low-cost operating system. In the near future, from refrigerators to the radio will be built-in processor. Because of the openness of Linux, many people think Linux is suitable for the majority of Internet equipment. They believe that Linux can support different equipment, to support different configurations. Linux vendor of low-cost and even-handed, soon to become the equipment used for a variety of operating systems. Today, the industry has reached a consensus: that is, embedded linux is the general trend and its huge market potential and business opportunities will certainly brewing to attract a large number of manufacturers to enter this field.
embedded operating systems are Palm OS, Windows CE, EPOC, LinuxCE, QNX, ECOS, LYNX, high-end embedded systems require a number of high-level functions, such as the graphical user interface and network support. Many high-end RTOS suppliers have to provide these functions, but the price is very high-end, it is generally difficult to accept. Microsoft's Windows CE also has such features, does not have the most embedded systems require real-time performance, and are difficult to transplant, has also been said to want to use the DOS-based independent third-party tools to put together a system, but such efforts will be In vain. What is needed is a less mature and high-end embedded systems to provide the necessary characteristics of the operating system, embedded Linux operating system to low-cost, powerful and easy-to-transplant and is widely used, has become a rising force, so many Businesses have turned to embedded linux.
Linux for embedded operating system provides a very attractive option, which is similar to Unix and to the core-based, full memory protection, the process of multi-multi-tasking operating system. To support a wide range of computer hardware, including X86, Alpha, Sparc, MIPS, PPC, ARM, NEC, MOTOROLA, etc. Most of the existing chips. All open-source program, anyone can modify and in the GNU General Public License (GNU General Public License) under the issue, so that developers can customize the operating system, no longer have to worry about operating systems like MS windows in the "back door "The threat. At the same time, because of the GPL control, the development of all the things most compatible with each other, not to split the road. Linux users who encounter problems to the Internet through the Internet hundreds of thousands of Linux developers to ask, which makes the most difficult problems can be solved. Linux with Unix users are familiar with the sound development tools, almost all of the Unix system software has been ported to the Linux on. Linux also provides a powerful network functions, there are a variety of optional window manager (X windows). Its strong language compiler gcc, g, and so on can also be easily. Not only improve the maturity and ease of use.

  choose linux reasons
  can be applied to a variety of hardware platforms. Linux has been ported to a variety of hardware platforms, which is subject to cost, time-bound items research and development is very attractive. Prototype can be developed in the standard platform and then migrate to specific hardware, software and hardware to speed up the development process.
  Linux can be configured to not require any permit or business relationship.
  it is free, source code available. This is the most attractive. There is no doubt that this will save a lot of development costs.
  its own built-in support network.
  Linux's highly modular so very easy to add components.
  Linux on the desktop to the success, so that we can see linux embedded in the system brilliant prospects.

--- Hua Heng's