★ Must-know
Further detail
A text file is a sequence of characters organized into lines and possibly pages.
A source file is organized as a sequence of functions, each containing declarations followed by executable statements.
1. Which description best defines a file in an operating system?
2. Two files contain different kinds of data and have different internal organizations. What best explains this difference?
3. A system records a file's protection settings and its last-use time. Which set of other items consists of typical file attributes?
What is a file?
A named collection of related information recorded on secondary storage.
What determines the meaning of information in a file?
Its creator and user.
How are a file’s information and structure determined?
By its creator, depending on the file type.
Which attributes are typical for a file?
Name, identifier, type, location, size, protection, and creation, modification, and use time, date, and user identification.
What two steps are required to create a file?
Find space in the file system and add an entry to the directory.
What advances after each file read or write operation?
The file-position pointer advances after each operation.
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