▪ manage computer resources,
• Memory management • Process management • CPU scheduling
▪ provide an interface between users and the computer,
• command-line interface • graphical user interface (GUI)
Software
File Systems and Directories
❖ Directory tree – nested organization of a file system
▪ Root directory, e.g. C:\ or D:\ in windows ▪ Subdirectories or folders
1106?平时作业?所有作业实验报告必须在12月20日前全部在在线教室提交考试安排?考题类型?termmatching5题10分?multiplechoice10题20分?completion10题10分?computation2题12分?flowchart1题8分outline?computersystem?hardware?software?datarepresentationincomputer?network?algorithmdesign?database?securitydefinitionacomputerisanelectronicdevicewhich?operatesunderthecontrolofstoredinstructions?acceptsdatainput?processesthedataaccordingtospecifiedrules?producesandstoresoutputinputoutputprogramcomputerwhatscomputer5acomputerspowerisderivedfrom?speed?reliability?accuracy?storage?communicationswhatscomputer6hardwarevonneumannmachine?foundationofmoderncomputers?usebinaryinformation?theprincipleofstoredprogram?twostepsofamachinecycle