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  2. Emergency position-indicating radiobeacon - Wikipedia

    en.wikipedia.org/wiki/Emergency_position...

    A unique 15-digit hexadecimal beacon identification code (a "15-hex ID"). The encoded identification of the vessel or aircraft in distress, either as an MMSI value, or as, in the case of an ELT, either the aircraft's registration or its ICAO 24-bit address (from its Mode-S transponder). When equipped, a GPS position.

  3. ImHex - Wikipedia

    en.wikipedia.org/wiki/ImHex

    imhex.werwolv.net. Free software portal. ImHex is a free cross-platform hex editor available on Windows, macOS, and Linux. [1] ImHex is used by programmers and reverse engineers to view and analyze binary data. [2]

  4. Radio Data System - Wikipedia

    en.wikipedia.org/wiki/Radio_Data_System

    Radio Data System (RDS) is a communications protocol standard for embedding small amounts of digital information in conventional FM radio broadcasts. RDS standardizes several types of information transmitted, including time, station identification and program information. The standard began as a project of the European Broadcasting Union (EBU ...

  5. Calculator spelling - Wikipedia

    en.wikipedia.org/wiki/Calculator_spelling

    Calculator spelling. Calculator spelling is an unintended characteristic of the seven-segment display traditionally used by calculators, in which, when read upside-down, the digits resemble letters of the Latin alphabet. Each digit may be mapped to one or more letters, creating a limited but functional subset of the alphabet, sometimes referred ...

  6. Aircraft emergency frequency - Wikipedia

    en.wikipedia.org/wiki/Aircraft_emergency_frequency

    The aircraft emergency frequency (also known in the USA as Guard) is a frequency used on the aircraft band reserved for emergency communications for aircraft in distress.The frequencies are 121.5 MHz for civilian, also known as International Air Distress (IAD), International Aeronautical Emergency Frequency, [1] or VHF Guard, [1] and 243.0 MHz—the second harmonic of VHF guard—for military ...

  7. Calculator (Apple) - Wikipedia

    en.wikipedia.org/wiki/Calculator_(Apple)

    Calculator (Apple) Calculator is a basic calculator application made by Apple Inc. and bundled with its macOS, iOS, iPadOS, and watchOS operating systems. It has three modes: basic, scientific, and programmer. The basic mode includes a number pad, buttons for adding, subtracting, multiplying, and dividing, as well as memory keys.

  8. Teletext - Wikipedia

    en.wikipedia.org/wiki/Teletext

    The type of decoder circuitry is sometimes marked on televisions as CCT (Computer-Controlled Teletext), or ECCT (Enhanced Computer-Controlled Teletext). Besides the hardware implementations, it is also possible to decode teletext using a PC and video capture or DVB board, [ 46 ] as well as recover historical teletext from self-recorded VHS tapes.

  9. Windows Calculator - Wikipedia

    en.wikipedia.org/wiki/Windows_Calculator

    A simple arithmetic calculator was first included with Windows 1.0. [5]In Windows 3.0, a scientific mode was added, which included exponents and roots, logarithms, factorial-based functions, trigonometry (supports radian, degree and gradians angles), base conversions (2, 8, 10, 16), logic operations, statistical functions such as single variable statistics and linear regression.