Computer Science 105 - Beekman Part 1 Chapter 3 Notes

Computer Science 105 - Beekman Part 1 Chapter 3 Notes -...

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Beekman’ Part’1’ Chapter’3 ’ Notes’ The’QWERTY’keyboard’is’named’for’the’top’row’of’letter’keys Many’keyboards’forces’to’hold’your’arm’at’unnatural’angles ’ which’leads’to’ repetitive-stress’injuries ’ Ergonomic’keyboards’place’keys’at’angles’that’are’easier’on’your’arms’and’ hands’without’changing’the’ordering’of’the’keys Most’keyboards’are’a’USB’cable’but’a’wireless’keyboard’does’not’need’a’ cable.’ Mouse’is’desig ned’to’move’a’pointer’around’the’screen’and’point’to’specific’ characters’or’objects ’ Wireless’mouse’use’Bluetooth’or’other’frequencies’to’send’signals Touchpad’is’the’flat’panel’on’laptops,’track’point’is’ball’in’the’middle’of’the’ keyboard,’a’track’ball’res embles’an’upside’down’mouse.’ With’game’controllers,’there’are’big’joysticks,’gamepad’with’many’buttons Graphics’tablet’is’popular’with’artists’and’designers’and’touch’screen’ responds’to’user’touch’ A’multi -touch’device’detects’more’than’one’fingers’ Optical’mark’readers’look’for’location’of’pencil’on’testes,’magnetic’ink’ character’readers’read’for’ink’on’checks,’bar’code’readers’use’light’to’read’
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