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  2. List of keyboard switches - Wikipedia

    en.wikipedia.org/wiki/List_of_keyboard_switches

    Download QR code; Print/export ... Razer: DMET [15] Red (Optical Switch) [16] Cherry MX Red: Linear: 0.40 N: N/A: 1.0 mm: 100 million Razer: DMET [15] Purple (Optical ...

  3. Sound test - Wikipedia

    en.wikipedia.org/wiki/Sound_test

    A sound test is a function built into the options screen of many video games. This function was originally meant to test whether the game's music and sounds would function correctly (hence the name), as well as giving the player the ability to compare samples played in Monaural , Stereophonic and later Surround sound.

  4. Optical mouse - Wikipedia

    en.wikipedia.org/wiki/Optical_mouse

    An optical mouse is a computer mouse which uses a light source, typically a light-emitting diode (LED), and a light detector, such as an array of photodiodes, to detect movement relative to a surface. Variations of the optical mouse have largely replaced the older mechanical mouse design, which uses moving parts to sense motion.

  5. Codec listening test - Wikipedia

    en.wikipedia.org/wiki/Codec_listening_test

    A codec listening test is a scientific study designed to compare two or more lossy audio codecs, usually with respect to perceived fidelity or compression efficiency. Most tests take the form of a double-blind comparison. Commonly used methods are known as "ABX" or "ABC/HR" or "MUSHRA". There are various software packages available for ...

  6. Computer mouse - Wikipedia

    en.wikipedia.org/wiki/Computer_mouse

    So-called "hard mousepads" for gamers or optical/laser mice also exist. Most optical and laser mice do not require a pad, the notable exception being early optical mice which relied on a grid on the pad to detect movement (e.g. Mouse Systems). Whether to use a hard or soft mousepad with an optical mouse is largely a matter of personal preference.

  7. Audio and video interfaces and connectors - Wikipedia

    en.wikipedia.org/wiki/Audio_and_video_interfaces...

    Audio only: Analog: Often unmarked on consumer audio equipment since it is so common, or labelled with headphones symbol or as "line out". Computers and other equipment sometimes use Microsoft-Intel color coding scheme, especially when there are multiple input/output plugs. 3.5 mm TRS minijack RCA connector: Balanced audio

  8. Razer Switchblade - Wikipedia

    en.wikipedia.org/wiki/Razer_Switchblade

    Razer quotes, "The combination of the new dynamic tactile keyboard, a multi-touch-screen and, if required, a mobile gaming mouse, allows for the full desktop PC gaming experience and more." [ 7 ] The Switchblade would've most likely been equipped with 802.11 WiFi and Bluetooth , while more expensive models would have 3G network compatibility.

  9. Audio equipment testing - Wikipedia

    en.wikipedia.org/wiki/Audio_equipment_testing

    Objectivists claim that digital sound can have higher fidelity than analog sound because it lacks clicks, pops, wow, flutter, audio feedback, degradation, generational loss, and rumble, has a higher signal-to-noise ratio, has a wider dynamic range, has less total harmonic distortion, and has a flatter and more extended frequency response.