Operatibg System files - The File Concept Contiguous space...

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5/31/17 The File Concept Contiguous logical address space Types: Data Numeric Character Binary Program
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5/31/17 File Structure None - sequence of words, bytes Simple record structure Lines Fixed length Variable length Complex Structures Formatted document Relocatable load file
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5/31/17 File Structure Who decides? Operating system DOS/Windows .exe, .com, .bat, … Program UNIX/Linux
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5/31/17 File Attributes Name Type Location Size Protection Owner Time and date created Time and date last updated Read/write value
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5/31/17 Where are Attributes Stored In the directory structure, as part of the directory entry for the file—DOS, Windows In a separate data structure; in UNIX/Linux this structure is known as the inode for the file
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5/31/17 Directory Entry DOS/Windows: File name and attributes UNIX/Linux: File name and inode number.
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