The Concept of Directory and Naming Every day life Telephone book Shopping catalog Computer and networks Domain Name Service( DNS): Internet Domain name System mappingmachinenames(suchaswww.sun.comtoIp addresses(such as 192.9.48.5) File System maps a filename (for example, c: \ binlautoexec. bat)to a file handle that a program can use to access the contents of the fileThe Concept of Directory and Naming ◼ Everyday life ◼ Telephone book ◼ Shopping catalog ◼ Computer and networks ◼ Domain Name Service ( DNS):Internet Domain Name System ◼ mapping machine names (such as www.sun.com) to IP addresses (such as 192.9.48.5) ◼ File System ◼ maps a filename (for example, c:\bin\autoexec.bat) to a file handle that a program can use to access the contents of the file