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  2. ASCII - Wikipedia

    en.wikipedia.org/wiki/ASCII

    ASCII (/ ˈ æ s k iː / ⓘ ASS-kee), [3]: 6 an acronym for American Standard Code for Information Interchange, is a character encoding standard for electronic communication. . ASCII codes represent text in computers, telecommunications equipment, and other devic

  3. CMYK color model - Wikipedia

    en.wikipedia.org/wiki/CMYK_color_model

    To reproduce color, the CMYK color model codes for absorbing light rather than emitting it (as is assumed by RGB). The "K" component absorbs all wavelengths and is therefore achromatic. The cyan, magenta, and yellow components are used for color reproduction and they may be viewed as the inverse of RGB.

  4. Calculator - Wikipedia

    en.wikipedia.org/wiki/Calculator

    Made in Japan, this was also the first calculator to use an LED display, the first hand-held calculator to use a single integrated circuit (then proclaimed as a "calculator on a chip"), the Mostek MK6010, and the first electronic calculator to run off replaceable batteries. Using four AA-size cells the LE-120A measures 4.9 by 2.8 by 0.9 inches ...

  5. Handkerchief code - Wikipedia

    en.wikipedia.org/wiki/Handkerchief_code

    The handkerchief code (also known as the hanky code, the bandana code, and flagging) [1] is a system of color-coded cloth handkerchief or bandanas for non-verbally communicating one's interests in sexual activities and fetishes. The color of the handkerchief identifies a particular activity, and the pocket it is worn in (left or right ...

  6. Morse code - Wikipedia

    en.wikipedia.org/wiki/Morse_code

    Chart of the Morse code 26 letters and 10 numerals [1]. This Morse key was originally used by Gotthard railway, later by a shortwave radio amateur [2]. Morse code is a telecommunications method which encodes text characters as standardized sequences of two different signal durations, called dots and dashes, or dits and dahs.

  7. QWERTY - Wikipedia

    en.wikipedia.org/wiki/QWERTY

    The "primary" layout is intended for traditional users who have learned how to type with older, Microsoft-style implementations of the Romanian keyboard. The "secondary" layout is mainly used by programmers as it does not contradict the physical arrangement of keys on a US-style keyboard.

  8. Angle-resolved photoemission spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Angle-resolved...

    Color scale represents electron counts per kinetic energy and emission angle channel. When 21.22 eV photons are used, the Fermi level is imaged at 16.64 eV. Angle-resolved photoemission spectroscopy ( ARPES ) is an experimental technique used in condensed matter physics to probe the allowed energies and momenta of the electrons in a material ...

  9. Rockwell B-1 Lancer - Wikipedia

    en.wikipedia.org/wiki/Rockwell_B-1_Lancer

    The Rockwell B-1 Lancer [b] is a supersonic variable-sweep wing, heavy bomber used by the United States Air Force.It has been nicknamed the "Bone" (from "B-One"). [2] [3] It is one of the Air Force's three strategic bombers, along with the B-2 Spirit and the B-52 Stratofortress, as of 2024.