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In computing, a keyboard controller is a device that interfaces a keyboard to a computer. Its main function is to inform the computer when a key is pressed or released. When data from the keyboard arrives, the controller raises an interrupt (a keyboard interrupt ) to allow the CPU to handle the input.
A wireless keyboard is a computer keyboard that allows the user to communicate with computers, tablets, or laptops with the help of radio frequency (RF), such as WiFi and Bluetooth or with infrared (IR) technology.
In 2008, Microsoft also released the SideWinder X6 Gaming Keyboard, which is designed to be the keyboard counterpart of the Sidewinder Mouse. It features up to 30 programmable macro keys, volume control, media control, a detachable numpad and backlighting. Along with this keyboard a new mouse was released dubbed the SideWinder X5.
MIDI was designed with keyboards in mind, and any controller that is not a keyboard is considered an "alternative" controller. [1] This was seen as a limitation by composers who were not interested in keyboard-based music, but the standard proved flexible, and MIDI compatibility was introduced to other types of controllers, including guitars ...
PlayStation 3 controllers and Wii remotes also use Bluetooth HID. Bluetooth HID is a lightweight wrapper of the human interface device protocol defined for USB . The use of the HID protocol simplifies host implementation (when supported by host operating systems ) by re-use of some of the existing support for USB HID in order to support also ...
Anti-sidetone circuitry in the telephone hybrid brought sidetone under control in the early 20th century, leaving enough feedback signal to assure the user that the telephone is working. [2] Almost all land-line (wired and wireless) telephones have employed sidetone, so it was an expected convention for cellular telephony, but is not standard.
Keyboard controller may refer to: Keyboard controller (computing), a computer hardware which connects a keyboard to the main board; In music, ...
SCI from the Embedded Controller to inform the ACPI driver (in the OS) of an ACPI Event; As a core system component, the embedded controller is always on when power is supplied to the mainboard. To communicate with the main computer system, several forms of communication can be used, including ACPI, SMBus, or shared memory.