计算机组装与维护:通过计算机的组装，认识计算机的硬件和结构，了解计算机的整个组装过程和注意事项 OS操作，利用C语言，实现对OS的操作-Computer assembly and maintenance: through computer assembly, computer hardware and structure of knowledge, understanding the computer' s entire assembly process and notices　OS operations, the use of C language to realize the operation of the OS