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The term can also be used as part of an action; to "perform I/O" is to perform an input or output operation. I/O devices are the pieces of hardware used by a human (or other system) to communicate with a computer. For instance, a keyboard or computer mouse is an input device for a computer, while monitors and printers are output devices.
gets() and scanf() family of I/O routines, for lack of (either any or easy) input length checking. Except the extreme case with gets(), all the security vulnerabilities can be avoided by introducing auxiliary code to perform memory management, bounds checking, input checking, etc. This is often done in the form of wrappers that make standard ...
The touch user interfaces popular on small mobile devices are an overlay of the visual output to the visual input. User interface (UI) design or user interface engineering is the design of user interfaces for machines and software, such as computers, home appliances, mobile devices, and other electronic devices, with the focus on maximizing ...
Memory-mapped I/O is preferred in IA-32 and x86-64 based architectures because the instructions that perform port-based I/O are limited to one register: EAX, AX, and AL are the only registers that data can be moved into or out of, and either a byte-sized immediate value in the instruction or a value in register DX determines which port is the source or destination port of the transfer.
discrete input and output bits, allowing control or detection of the logic state of an individual package pin; serial input/output such as serial ports ; other serial communications interfaces like I²C, Serial Peripheral Interface and Controller Area Network for system interconnect
Device interfaces and input/output capabilities are sometimes provided using memory-mapped files. Applications that interact with devices open a location on the filesystem corresponding to the device, as they would for an ioctl call, but then use memory mapping system calls to tie a portion of their address space to that of the kernel.
Text terminal windows present a character-based, command-driven text user interfaces within the overall graphical interface. MS-DOS and Unix consoles are examples of these types of windows. Terminal windows often conform to the hotkey and display conventions of CRT-based terminals that predate GUIs, such as the VT-100.
Programmed input–output (also programmable input/output, programmed input/output, programmed I/O, PIO) is a method of data transmission, via input/output (I/O), between a central processing unit (CPU) and a peripheral device, [1] such as a Parallel ATA storage device. Each data item transfer is initiated by an instruction in the program ...