1. Microcomputer module design and research and development. <br>2. computer book publishing. <br>3. Information published computer magazine. <br>4. high schools, primary and secondary school textbooks
1. Design and development of microcomputer modules.<br>2. Computer book publishing.<br>3. Computer Information Magazine published.<br>4. Textbooks for high school, primary and secondary schools
1. Design and development of microcomputer module.<br>2. Computer book publishing.<br>3. Publishing of computer information magazine.<br>4. High school vocational and primary and secondary school textbooks<br>