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Extraction code: rfey computer test grade refers to a grading system of computer level stipulated in China, which is divided into four grades. The first level is to meet people's application of computers in general work, with emphasis on the assessment of operational ability; The second-level positioning is a computer programmer, which can be described as "computer blue collar". The third level is defined as "development engineer", focusing on design, management, testing and technology. The fourth level is defined as "system design engineer and project supervisor".