EntityQ1060813· pop 21· linked from 218 articlesfile descriptorSign in to saveabstract indicator (handle) used to access a file or other input/output resourceConnectionsstandard streamsEntitycomputer fileEntitydirectoryEntitydevice fileEntitypathEntityC file input/outputEntitycomputerEntityLinuxEntityoperating systemEntityInternational Standard Book NumberEntityprogramming languageEntityQ11368EntitykernelEntityapplication programming interfaceEntitydata compressionEntityfile systemEntityinput/outputEntitybackupEntityfilename extensionEntityQ14658EntityCategoriesPOSIXUnix file system technology