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This configuration is common on IBM/Lenovo Thinkpad notebooks among many others. The PS/2 keyboard interface is electrically the same as the 5-pin DIN connector on earlier AT keyboards, and keyboards designed for one can be connected to the other with a simple wiring adapter. Such wiring adapters and adapter cables were once commonly available ...
Closeup of a touchpad on an Acer CB5-311 laptop Closeup of a touchpad on a MacBook 2015 laptop. A touchpad or trackpad is a type of pointing device.Its largest component is a tactile sensor: an electronic device with a flat surface, that detects the motion and position of a user's fingers, and translates them to 2D motion, to control a pointer in a graphical user interface on a computer screen.
Selker built a model of a device that would minimize this time. It was only three years later, working at IBM, that Selker refined his design, resulting in the TrackPoint product [8] for which IBM received US patents in 1996 [9] [10] and 2000. [11] Pointing sticks were the dominant pointing device for laptops before the advent of the touchpad.
ThinkPad is a line of business-oriented laptop and tablet computers produced since 1992. The early models were designed, developed and marketed by International Business Machines (IBM) until it sold its PC business to Lenovo in 2005; since 2007, all new ThinkPad models have been branded Lenovo instead [5] and the Chinese manufacturer has continued to develop and sell ThinkPads to the present day.
The W541 is a ThinkPad W540 featuring the new-style keyboard but with a re-introduction of the classic ThinkPad touchpad design. The prior ThinkPad touchpad design featured in the W540 and other 4th-gen ThinkPads was abandoned.
Other than its convertible form factor, the first ThinkPad Yoga is a rather standard ThinkPad device with a black magnesium-reinforced chassis, island keyboard, a red TrackPoint, and a large buttonless touchpad [1] [2] (but touchpad have been upgraded to a mechanical 3-button version for a next generations of Yoga line).
Buttons and ports on a Lenovo Thinkpad Tablet. The ThinkPad Tablet offered the following specifications: [10] Processor: NVIDIA Tegra 2 Dual-Core 1 GHz processor; Operating system: Android 3.1 (Upgradable to 4.0) [11] Display: 10.1 inch, 1280x800, 16:10, IPS, multitouch display screen; Weight: starting at 1.65 lb (0.75 kg) Battery life: up to 8 ...
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.