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A multifunction display (MFD) is a small-screen (CRT or LCD) surrounded by multiple soft keys (configurable buttons) that can be used to display information to the user in numerous configurable ways. MFDs originated in aviation, first in military aircraft, and later were adopted by commercial aircraft, general aviation , automotive use ...
A radio button or option button [citation needed] is a graphical control element that allows the user to choose only one of a predefined set of mutually exclusive options. [1] The singular property of a radio button makes it distinct from checkboxes , where the user can select and unselect any number of items.
Stack light in automated production for in-line quality inspection. Stack lights (also known as signal tower lights, indicator lights, andon lights, warning lights, industrial signal lights, or tower lights) are commonly used on equipment in industrial manufacturing and process control environments to provide visual and audible indicators of a machine's status to machine operators, technicians ...
To identify the control or the indicator to play the next part and then stop. Record: U+23FA ⏺ #5547 Recording, general: To identify a control to preset or start a recording mode. Eject U+23CF ⏏ #5459 Eject: To identify the control for the eject function. Shuffle U+1F500 🔀 — To randomly play a song from a given list.
It was not until the 1960s that needle meters were made inexpensively enough in Japan to displace indicator tubes. [2] Tuning indicator tubes were used in vacuum tube receivers from around 1936 to 1980, before vacuum tubes were replaced by transistors in radios. [3] An earlier tuning aid which the magic eye replaced was the "tuneon" neon lamp ...
For example, one inch measured from a drawing with a scale of "one-inch-to-the-foot" is equivalent to one foot in the real world (a scale of 1:12)....one inch measured from a drawing with a scale of "two-inches-to-the-foot" is equivalent to six inches in the real world (a scale of 1:6).
An annunciator panel, also known in some aircraft as the Centralized Warning Panel (CWP) or Caution Advisory Panel (CAP), is a group of lights used as a central indicator of status of equipment or systems in an aircraft, industrial process, building or other installation. Usually, the annunciator panel includes a main warning lamp or audible ...
The Signaltron main departure board at Praha-Smíchov station, Czech Republic (2012), manufactured by Pragotron Schematic of a split-flap display in a digital clock display An animation of how a split-flap display works Flap departure board at Gare du Nord, Paris (2007) Section of a split-flap display board at Frankfurt (Main) Hauptbahnhof (2005) Enlarged inner workings of a split-flap clock