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Computer program       Simply put, the computer program is a sequence of computer implementation of the directive. It can perform a simple task just a few instructions, may also be a huge amount of data to operate the complex instruction queue. Many computer programs such as Apple Computers contain millions of instructions, which may be repeated many of the implementation of directives. In 2005, Wholesale Computers, a typical personal computer can be about 30 million instructions per second. Computer usually does not perform some very complicated instructions to get the extra functions, nor is it to implement a number of Computer Accessories, more places they are in accordance with the programmer's arrangement to run those, but a large number of short simple instructions. In general, programmers do not directly write the machine language instructions for the computer. So do the results can only be time consuming, inefficient and flawed. Therefore, the programmer usually through the "Advanced" some of the language to write programs, and then by some special computer programs, such as the interpreter or compiler for translation into machine language. Some programming languages look very close to machine language, such as assembler, are considered low-level language. While other languages, such as the abstract principles such as Prolog, is completely ignoring the actual running of the operational details of the computer, can be called high-level language. For a specific task, should be based on the characteristics of its affairs, the programmer skills, available tools, and customer needs to select the appropriate language, among which the most important customer needs. Please visit TradeTang.com.