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How many grades are there in the National Computer Rank Examination?
Computer grade examination is divided into the following four levels:

1, the first-level examination of microcomputer basic knowledge.

2. Advanced computer language programming for the second-level examination.

3. Test the hardware composition of PC and the basic knowledge of Windows operating system.

4. CET-4 tests the basic knowledge of computer major and the basic skills of analysis, design and organization of computer application projects.