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  2. Konami Code - Wikipedia

    en.wikipedia.org/wiki/Konami_Code

    The code is also known as the "Contra Code" and "30 Lives Code", since the code provided the player 30 extra lives in Contra. The code has been used to help novice players progress through the game. [10] [12] The Konami Code was created by Kazuhisa Hashimoto, who was developing the home port of the 1985 arcade game Gradius for the NES.

  3. Patricia Davies (codebreaker) - Wikipedia

    en.wikipedia.org/wiki/Patricia_Davies_(codebreaker)

    They were where secret German military communications were intercepted, transcribed and, if in a code other than morse, passed on to Bletchley Park. Owtram's first post was in Yorkshire. She later transferred to Lyme Regis in 1943 as Chief Petty Officer, and then to Dover (opposite Cape Gris Nez) where she turned 21 two weeks after D Day. In Y ...

  4. Q code - Wikipedia

    en.wikipedia.org/wiki/Q_code

    This is one of a set of articles on telegraphy. The Q-code is a standardised collection of three-letter codes that each start with the letter "Q". It is an operating signal initially developed for commercial radiotelegraph communication and later adopted by other radio services, especially amateur radio.

  5. Classified information - Wikipedia

    en.wikipedia.org/wiki/Classified_information

    Top Secret is the highest level of classified information. [4] Information is further compartmented so that specific access using a code word after top secret is a legal way to hide collective and important information. [5] Such material would cause "exceptionally grave damage" to national security if made publicly available. [6]

  6. One-time pad - Wikipedia

    en.wikipedia.org/wiki/One-time_pad

    For the codes, words and phrases were converted to groups of numbers (typically 4 or 5 digits) using a dictionary-like codebook. For added security, secret numbers could be combined with (usually modular addition) each code group before transmission, with the secret numbers being changed periodically (this was called superencryption). In the ...

  7. Pig Latin - Wikipedia

    en.wikipedia.org/wiki/Pig_Latin

    Pig Latin is a language game, argot, or cant in which words in English are altered, usually by adding a fabricated suffix or by moving the onset or initial consonant or consonant cluster of a word to the end of the word and adding a vocalic syllable (usually -ay or /eɪ/) to create such a suffix. [1]

  8. Signal lamp - Wikipedia

    en.wikipedia.org/wiki/Signal_lamp

    An Ottoman heliograph crew using a A Blinkgerät (left) Begbie signalling oil lamp, 1918 Signal lamps were pioneered by the Royal Navy in the late 19th century. They were the second generation of signalling in the Royal Navy, after the flag signals most famously used to spread Nelson's rallying-cry, "England expects that every man will do his duty", before the Battle of Trafalgar.

  9. Barcode - Wikipedia

    en.wikipedia.org/wiki/Barcode

    Williams also developed Code 128, and the structure of 16K is based on Code 128. Not coincidentally, 128 squared happened to equal 16,384 or 16K for short. Code 16K resolved an inherent problem with Code 49. Code 49's structure requires a large amount of memory for encoding and decoding tables and algorithms. 16K is a stacked symbology. [41] [42]