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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Screen-labeled function keys ： ウィキペディア英語版 Screen-labeled function keys Screen-labeled function keys are a special case of soft key (function keys) where keys are placed near a screen, which provides labels for them. These are today most commonly found in kiosk applications, such as automated teller machines and gas pumps. Screen-label function keys generally date to the late 1960s, and kiosk applications were particularly common in the 1990s and 2000s. Most recently, these keys have found use in point of sale systems; NCR Corporation claims that their ''DynaKey'' system "has been proven to reduce training time and cashier errors".〔(【引用サイトリンク】url=http://www.ncr.com/retail/food-drug-mass-merchandise/assisted-service-hardware/realpos-peripherals/ncr-realpos-dynakey )〕 An alternative to screen-labeled function keys is buttons (virtual keys) on a touchscreen, where the label is directly pushable. The increased prevalence of touchscreens in the 2000s has led to a decrease in screen-labeled function keys. However, screen-labeled function keys are inexpensive and robust, and provide tactile feedback. ==History== Early examples are found in aviation glass cockpits, such as the Mark II avionics of the F-111D in the late 1960s/early 1970s (first ordered 1967, delivered 1970–73). Hewlett-Packard developed them for use in computers/calculators in the 1970s. The HP 9830 desktop computer was the first calculator with two rows of 4 keys, over which a paper overlay would be placed. These were later adapted to terminals. Programmers found that the HP 2640 terminals could lock the top two lines of the screen, so they displayed the key functions there. Starting with HP 2647 terminal, the keys were re-arranged to correspond with 2 pairs of 4 labels at the bottom of the screen. These could be programmed by escape sequence or configuration screen. This would be further developed on the failed HP 300 Amigo, which used keys at the right side of the screen and HP 250 business computers which placed them at the bottom. By arranging functions in hierarchical trees, many functions can be implemented with only 8 keys. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Screen-labeled function keys」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.