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The document is a lecture on System-Level I/O in Unix, covering key concepts such as Unix I/O characteristics, file types, basic operations (open, read, write, close), and the handling of file metadata. It discusses the differences between classic Unix/Linux I/O and mainframe I/O, introduces the RIO (Robust I/O) package for efficient data transfer, and explains how processes share files and implement I/O redirection. The document emphasizes the importance of using appropriate I/O functions based on application needs.

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What does CMU CS stand for?

CMU CS Academy is an online, graphics-based computer science curriculum taught in Python provided by Carnegie Mellon University. We create novel, world-class Computer Science education for your classroom and its entirely free.

Is CMU CS prestigious?

Academics: Carnegie Mellons School of Computer Science is world-renowned for its cutting-edge research and top-notch faculty. The curriculum is rigorous, and students have access to a wide range of specialized courses.

Where is CMU CS?

Our physical address (for GPS and sat-nav devices and online mapping programs) is: 4902 Forbes Ave., Pittsburgh, PA. You can also find directions on Google Maps.

What does CMU stand for?

For every 100 applicants, only 11 are admitted. This means the school is extremely selective. Meeting their GPA requirements and SAT/ACT requirements is very important to getting past their first round of filters and proving your academic preparation.

What does RioWriten do?

Applications can transfer data directly between memory and a file by calling the rio readnand rio writen functions. The rio readn function transfers up to n bytes from the current file position of descriptor fd to memory location usrbuf.

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