IOhandling
IO handling encompasses management of data transfers between a computer system and peripherals or other systems, including storage devices, networks, and human interfaces. It covers both reading and writing data and the policies and structures that enable these transfers. It sits between applications and hardware, and is implemented in kernels, libraries, and drivers.
Techniques include buffering and caching at multiple levels (application buffers, OS buffers, and disk caches) to
Synchrony and concurrency: synchronous I/O blocks the caller until completion, while asynchronous or non-blocking I/O allows
Performance and reliability: effective IO handling aims to maximize throughput and minimize latency, manage backpressure, and
Standards and scope: POSIX I/O provides portable interfaces for Unix-like systems; Windows offers Win32 I/O with