Type of Linux/Unix I/O

i have开发者_如何学Go to make a presentation about Linux/Unix I/O: File I/O,Standard I/O, buffered/unbuffered I/O and formatted/unformatted I/O.

i'm not sure how to order these kinds of I/O to make sense.

here is my try:

• file I/O
  • unbuffered I/O
  • buffered I/O
    • Standard I/O
    • formatted/unformatted I/O

is this correct ??

thx anyway

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It looks like a good start. I would add the following topics:

• asynchronous I/O: epoll, poll and select
• scatter/gather operations: readv, writev
• memory-mapped I/O: mmap