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The PC 97 standard requires that a computer's BIOS must detect and work with USB HID class keyboards that are designed to be used during the boot process. Some keyboards implement the USB Boot Keyboard profile specified in the USB Device Class Definition for Human Interface Devices (HID) v1.11 and are explicitly configured to use the boot protocol.
The Gateway AnyKey is a programmable computer keyboard that was sold exclusively [2] by Gateway 2000, Inc., as an option for some of their desktop computers.Introduced in the spring of 1991, [3] the keyboard was manufactured in at least five known versions and incarnations by Tucson, Arizona–based Maxi Switch, Inc., a subsidiary of the Lite-On Technology Corporation. [4]
Makey Makey: An Invention Kit for Everyone is an invention kit designed to connect everyday objects to computer keys. [1] Using a circuit board , alligator clips, and a USB cable , the toy uses closed loop electrical signals to send the computer either a keyboard stroke or mouse click signal.
The keyboard sends the key code to the keyboard driver running in the main computer; if the main computer is operating, it commands the light to turn on. All the other indicator lights work in a similar way. The keyboard driver also tracks the Shift, alt and control state of the keyboard.
The USB HID keyboard interface requires that it explicitly handle key rollover, with the full HID keyboard class supporting n-key rollover. However, the USB boot keyboard class (designed to allow the BIOS to easily provide a keyboard in the absence of OS USB HID support) only allows 6-key rollover.
Enterprise 1U rack mount KVM showing console and computer ports for DVI and USB (keyboard/mouse) A KVM switch (with KVM being an abbreviation for "keyboard, video, and mouse") is a hardware device that allows a user to control multiple computers from one or more sets of keyboards , video monitors , and mouse .
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Apple Inc. has designed and developed many external keyboard models for use with families of Apple computers, such as the Apple II, Mac, and iPad.The Magic Keyboard and Magic Keyboard with Numeric Keypad designed to be used via either Bluetooth and USB connectivity, and have integrated rechargeable batteries; The Smart Keyboard and Magic Keyboard accessories for iPads are designed to be ...