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  2. Light pen - Wikipedia

    en.wikipedia.org/wiki/Light_pen

    A light pen is a computer input device in the form of a light-sensitive wand used in conjunction with a computer's cathode-ray tube (CRT) display. It allows the user to point to displayed objects or draw on the screen in a similar way to a touchscreen but with greater positional accuracy.

  3. Digital pen - Wikipedia

    en.wikipedia.org/wiki/Digital_pen

    A smart pen has the same basic characteristics as a digital pen, but also has other features like voice recording or a text scanner. A smart pen is generally larger and has more features than an active pen. Digital pens typically contain internal electronics and have features such as touch sensitivity, input buttons, memory for storing ...

  4. Stylus (computing) - Wikipedia

    en.wikipedia.org/wiki/Stylus_(computing)

    A stylus was used to turn the dials. Later devices of this type include the Arithmometer, in the 1860s; and the Addiator, in 1920. [5] The Addiator was a pocket mechanical adding machine that used a stylus to move tiny rigid slices of sheet-metal that were enclosed in a case.

  5. Apple Pencil - Wikipedia

    en.wikipedia.org/wiki/Apple_Pencil

    Apple Pencil is a line of wireless stylus pen accessories designed and developed by Apple Inc. for use with supported iPad tablets. The first-generation Apple Pencil was announced alongside the first iPad Pro on September 9, 2015. It communicates wirelessly via Bluetooth and has a removable cap that conceals a Lightning connector used for charging.

  6. Pen computing - Wikipedia

    en.wikipedia.org/wiki/Pen_computing

    Pen computing refers to any computer user-interface using a pen or stylus and tablet, over input devices such as a keyboard or a mouse.. Historically, pen computing (defined as a computer system employing a user-interface using a pointing device plus handwriting recognition as the primary means for interactive user input) predates the use of a mouse and graphical display by at least two ...

  7. Active pen - Wikipedia

    en.wikipedia.org/wiki/Active_pen

    The active pen marketplace has long been dominated by N-trig [2] and Wacom, [3] but newer firms Atmel [4] and Synaptics [5] also offer active pen designs. An active pen is generally larger and has more features than a stylus. Digital pens typically contain internal electronics and have features such as touch sensitivity, input buttons, memory ...

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