狠狠撸

chs computer pchs personal computer hardware servicing chs nc ii computer hardware servicing working with applications applications windows disk device boot boot process configure portable pcs sound imaging devices video card monitor printer supplies case mice mouse power keyboard electricity preventive safety memory maintenance troubleshooting pchs personal computer hardware servicing computing overview motherboard managing files files computer hardware servicing cpu cables basic components installing operating system setup bios web net internet modems storage network windows network interface drive c task management hardware networking cd course syllabus