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It was based on the T470, but brought back the classic 7-row keyboard. [21] [22] In 2018, Lenovo introduced the ThinkPad A485, which officially is not part of the T Series, but it shares the same housing as the T480. It offers a 2nd generation AMD Ryzen PRO processor and lacks Thunderbolt 3 support but has USB-C support.
ThinkBook is a line of business-oriented laptop computers and tablets designed, developed and marketed by Lenovo aimed at small businesses . The ThinkBook line is marketed towards small business users and gets the same market position as Lenovo's ThinkPad E series. The ThinkBook does not have a TrackPoint, physical touchpad buttons, and has a ...
An embedded controller can have the following tasks: Receiving and processing signals from the keyboard [ 1] and the touchpad (including touchpad disable) Other buttons and switches (e.g., power button, laptop lid switch (received from hall sensor)) [ 2] Controlling access to the A20 line [ 3] Thermal measurement (CPU, GPU, Motherboard) and ...
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In computing, the USB human interface device class ( USB HID class) is a part of the USB specification for computer peripherals: it specifies a device class (a type of computer hardware) for human interface devices such as keyboards, mice, game controllers and alphanumeric display devices . The USB HID class is defined in a number of documents ...
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.
A 104-key PC US English keyboard layout with System request circled. System Request (SysRq or Sys Req) is a key on personal computer keyboards that has no standard use. Introduced by IBM with the PC/AT, it was intended to be available as a special key to directly invoke low-level operating system functions with no possibility of conflicting with any existing software.
The keyboard for IBM PC-compatible computers is standardized. However, during the more than 30 years of PC architecture being frequently updated, many keyboard layout variations have been developed. A well-known class of IBM PC keyboards is the Model M. Introduced in 1984 and manufactured by IBM, Lexmark, Maxi-Switch and Unicomp, the vast ...