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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. Wireless keyboards in the current market are commonly accompanied by a wireless mouse . Wireless keyboards based on infrared ...
The technology of computer keyboards includes many elements. Many different keyboard technologies have been developed for consumer demands and optimized for industrial applications. The standard full-size (100%) computer alphanumeric keyboard typically uses 101 to 105 keys; keyboards integrated in laptop computers are typically less comprehensive.
History. Typewriters are the definitive ancestor of all key-based text entry devices, but the computer keyboard as a device for electromechanical data entry and communication largely comes from the utility of two devices: teleprinters (or teletypes) and keypunches. It was through such devices that modern computer keyboards inherited their layouts.
Fn key. The Fn key, short form for function, is a modifier key on many keyboards, especially external keyboards, and is not available for mobile devices. For use in a compact layout, combine keys which are normally kept separate. It-Alt + FN is typically found on laptops due to their keyboard size restrictions.
Hardware specifications. The U300s includes a 13-inch display, an Intel U series Core i7 or i5 processor, an SSD with options for 128 or 256 GB of storage. [2] The U300s makes use of Intel's HD Graphics 3000 integrated with the CPU, includes an HDMI port, and supports Intel's WiDi standard for wireless graphics. [4]
The pointing stick senses applied force by using two pairs of resistive strain gauges. A pointing stick can be used by pushing with the fingers in the general direction the user wants the pointer to move. The velocity of the pointer depends on the applied force so increasing pressure causes faster movement.
Window scrolling. The Scroll Lock key is meant to lock all scrolling techniques and is a vestige of the original IBM PC keyboard. In its original design, Scroll Lock was intended to modify the behavior of the arrow keys. When the Scroll Lock mode is on, the arrow keys scroll the contents of a text window instead of moving the cursor.
Lenovo Group Limited, trading as Lenovo ( ⫽ ləˈnoʊvoʊ ⫽ lə-NOH-voh, Chinese: 联想; pinyin: Liánxiǎng ), is a Chinese [7] multinational technology company specializing in designing, manufacturing, and marketing consumer electronics, personal computers, software, business solutions, and related services. [8]