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Whereas Microsoft mice and Microsoft keyboards were previously controlled from two separate programs – IntelliPoint and IntelliType – the Mouse and Keyboard Center is responsible for both kinds of devices. 32- and 64-bit versions of the software are available, and the program integrates with Windows 8 and above's "Modern UI" interface.
Microsoft IntelliType is the brand driver for Microsoft's series of computer keyboards.Microsoft releases versions for both Windows and Mac OS X (as of version 10.15 Microsoft IntelliType no longer installs on Mac OS X).
The PS/2 mouse connector generally replaced the older DE-9 RS-232 "serial mouse" connector, while the PS/2 keyboard connector replaced the larger 5-pin/180° DIN connector used in the IBM PC/AT design. The PS/2 keyboard port is electrically and logically identical to the IBM AT keyboard port, differing only in the type of electrical connector used.
Microsoft IntelliPoint is the Microsoft-branded software driver for the company's hardware mice. Microsoft has released versions for both Windows and Mac OS X. It has been succeeded by Microsoft Mouse and Keyboard Center, which combines IntelliType (a Microsoft keyboard driver) with IntelliPoint.
PS/2 did not typically support plug-and-play, which means that connecting a PS/2 keyboard or mouse with the computer powered on does not always work and may pose a hazard to the computer's motherboard. Likewise, the PS/2 standard did not support the HID protocol. The USB human interface device class describes a USB HID.
keyboard reset via sequence on DATA and CLK lines AT 1 CLK. 2 DATA 3 N/C 4 GND 5 +5V 1 start bit, 8 data, 1 parity (odd), 1 stop bit keyboard reset via command string Supported PS/2 "PS/2 port" 6-pin Mini-DIN (DIN 45322) 1 DATA. 2 N/C (or MOUSE DATA) 3 GND 4 +5V 5 CLK 6 N/C (or MOUSE CLK) Later PC compatibles 4-pin USB Type A connector 1 +5V. 2 ...
The keyboard controller also handles PS/2 mouse input if a PS/2 mouse port is present. Today the keyboard controller is either a unit inside a Super I/O device or is missing, having its keyboard and mouse functions handled by a USB controller and its role in controlling the A20 line becoming integrated into the chipset's northbridge and then ...
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.