Operating Systems File Types Sort by usage A system files A user files E library files e Sort by data format A source files object files H executable files e Sort by access control attribution E executable-only files d-only file H read/write files Gao Haichang, Software School, Xidian UniversityOperating Systems Gao Haichang , Software School, Xidian University 8 File Types  Sort by usage  system files  user files  library files  Sort by data format  source files  object files  executable files  Sort by access control attribution  executable-only files  read-only files  read/write files