{"id":1887,"date":"2018-10-11T13:17:38","date_gmt":"2018-10-11T13:17:38","guid":{"rendered":"http:\/\/clapat.ro\/themes\/grenada-wordpress\/?p=1887"},"modified":"2018-10-11T13:17:38","modified_gmt":"2018-10-11T13:17:38","slug":"a-brief-history-of-the-numeric-keypad","status":"publish","type":"post","link":"https:\/\/bitsec.ge\/ka\/2018\/10\/11\/a-brief-history-of-the-numeric-keypad\/","title":{"rendered":"A brief history of the numeric keypad"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_raw_code wpb_content_element wpb_raw_html\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p>Picture the keypad of a telephone and calculator side by side. Can you see the subtle difference between the two without resorting to your smartphone? Don\u2019t worry if you can\u2019t recall the design. Most of us are so used to accepting the common interfaces that we tend to overlook the calculator\u2019s inverted key sequence. A calculator has the 7\u20138\u20139 buttons at the top whereas a phone uses the 1\u20132\u20133 format.<\/p><br>\n\t\t<\/div>\n\t<\/div>\n<h4>Typewriters, Cash Registers, and Calculators<\/h4>\n\t<div class=\"wpb_raw_code wpb_content_element wpb_raw_html\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p>Looking at the key arrangement, I was curious to learn when the system of using keys was introduced in the history of machines. The keyboard came about sometime between the first and second industrial revolutions (from 1820 to 1920). Some inventors had already begun experimenting with machines similar to pianos in the late 18th century.<br><br>\n\nHowever, it wasn\u2019t until 1844 that a Frenchman by the name of Jean-Baptiste Schwilgu\u0107 came up with the first working prototype of a key-driven calculator machine. This machine used the first numerical keyboard with a single row of keys that increased from 1 to 9 (Dalakov, 2018).<br><br>\n\nIn all fairness, though, we have to mention two predecessors that could claim they invented the key-based interface. In 1834, Luigi Torchi reportedly showed a prototype of a wooden calculator, with a design similar to the typewriter. In 1822, author James White\u2019s New Century of Inventions showed a key-based device with nine numeric keys. Neither one stood up to the test of time, nor no proof was given that they weren\u2019t just fantasy (Durant, 2011).<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"Picture the keypad of a telephone and calculator side by side. Can you see the subtle difference between the two without resorting to your smartphone? Don\u2019t worry if you can\u2019t recall the design. Most of us are so used to accepting the common interfaces that we tend to overlook the calculator\u2019s inverted key sequence. A [...]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,3,6],"tags":[13,14,16,19,20,21,22],"class_list":["post-1887","post","type-post","status-publish","format-standard","hentry","category-design","category-free","category-template","tag-human","tag-interface","tag-letters","tag-portfolio","tag-psd","tag-showcase","tag-tech"],"_links":{"self":[{"href":"https:\/\/bitsec.ge\/ka\/wp-json\/wp\/v2\/posts\/1887","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bitsec.ge\/ka\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bitsec.ge\/ka\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bitsec.ge\/ka\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bitsec.ge\/ka\/wp-json\/wp\/v2\/comments?post=1887"}],"version-history":[{"count":0,"href":"https:\/\/bitsec.ge\/ka\/wp-json\/wp\/v2\/posts\/1887\/revisions"}],"wp:attachment":[{"href":"https:\/\/bitsec.ge\/ka\/wp-json\/wp\/v2\/media?parent=1887"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bitsec.ge\/ka\/wp-json\/wp\/v2\/categories?post=1887"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bitsec.ge\/ka\/wp-json\/wp\/v2\/tags?post=1887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}