What is a Computer Keyboard, Keyboard Definition, Types of Keyboard, Computer Hardware. A computer keyboard is an input device that allows a person to enter letters, numbers, and other symbols into a computer. It is one of the most used input devices for computers.A keyboard contains many mechanical switches or push-buttons called "keys". When one of these are pushed, an electrical circuit is closed, and the keyboard sends a signal to the computer that tells it what letter, number or symbol it would like to be shown on the screen.A keyboard can be joined to a computer using a wire, but can also be wireless.Today most keyboards that use wires connect to a USB port on the computer, but older ones use a type of port called PS/2 (Personal System/series 2), which is slower than USB.As early as the 1870s, teleprinter-like devices were used to simultaneously type and transmit stock market text data from the keyboard across telegraph lines to stock ticker machines to be immediately copied and displayed onto ticker tape. The teleprinter in its more contemporary form was developed from 1907 to 1910 byAmerican mechanical engineer Charles Krum and his son Howard, with early contributions by electrical engineer Frank Pearne. Earlier models were developed separately by individuals such as Royal Earl House and Frederick G. Creed. ....... Our Mantra: Information is Opportunity. Knowledge is Power. Be Informed - Be Powerful! SUPPORT US: SUBSCRIBE / LIKE / SHARE / COMMENT :) Subscribe Link: https://goo.gl/qbyzFb ....... CONNECT US: Website: http://www.simplyinfo.net/ Facebook: https://www.facebook.com/SimplyInfo.net Twitter: https://twitter.com/SimplyInfo9 YouTube: null Slideshare: https://www.slideshare.net/SimplyInfo9 Pinterest: https://in.pinterest.com/SimplyInfo9/ Instagram: https://www.instagram.com/simplyinfo9/ YouTube Subscribe Link: https://goo.gl/qbyzFb ....... OTHER PLAYLISTS TO EXPLORE: Games & Sports: https://goo.gl/uTXRWB Jobs & Career Info: https://goo.gl/cbCDXy Business Management: https://goo.gl/1sDjfW Information Technology: https://goo.gl/nWYpK8 Physics Concepts: https://goo.gl/FnLmes Education & Learning: https://goo.gl/54TR8A Filmmaking Concepts: https://goo.gl/RQL5qn Psychology Concepts: https://goo.gl/oYNNKA Indian Law Concepts: https://goo.gl/m98pWn Economics Concepts: https://goo.gl/yymX98 ....... About Simplyinfo.net: We provide the best info bytes videos in a very simple and effective way to learn, to revise and to master micro-content information. We simplify information in a wide variety of categories. Contact Us: simplyinfo9@gmail.com Be Blessed with Love, Health & Happiness. Cheers & Have Fun :) Team SimplyInfo.net P.S. CLICK BELOW LINK TO SUBSCRIBE FOR UPDATES. SUBSCRIBE LINK: https://goo.gl/qbyzFb