Why we need files

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0 Operating Systems (File Systems) Notas sobre Why we need files, criado por Ahmad Abdelwahed em 26-06-2015.
Ahmad Abdelwahed
Notas por Ahmad Abdelwahed, atualizado more than 1 year ago
Ahmad Abdelwahed
Criado por Ahmad Abdelwahed mais de 9 anos atrás
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We have three essential requirements for long-term information storage: It must be possible to store a very large amount of information. The information must survive the termination of the process using it. Multiple processes must be able to access the information at once. Just a few of the questions that quickly arise are: How do you find information ? How do you keep one user from reading another user's data ? How do you know which blocks are free ? As we saw how the operating system abstracted away the concept of the processor to create the abstraction of a process and how it abstracted away the concept of physical memory to offer processes address spaces, we can solve this problem with a new abstraction: the file.Files are logical units of information created by processes.File system is the part of operating system dealing with files.

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