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  2. QR code - Wikipedia

    en.wikipedia.org/wiki/QR_code

    The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; the pattern of position detection was found and determined by applying the least-used ratio (1:1:3:1:1) in black ...

  3. Postal codes in Belgium - Wikipedia

    en.wikipedia.org/wiki/Postal_codes_in_Belgium

    Postal codes in Belgium are numeric and consist of 4 numbers. The first digit indicates the province (except for the 3xxx numbers that are shared by the eastern part of Flemish Brabant and Limburg , the 6xxx that are shared between the Hainaut and Luxembourg province, and the 1xxx that are shared by the Brussels Capital Region , the western ...

  4. Can't Find My Way Home - Wikipedia

    en.wikipedia.org/wiki/Can't_Find_My_Way_Home

    Jimmy Miller. Official audio. "Can't Find My Way Home" on YouTube. " Can't Find My Way Home " is a song written by Steve Winwood that was first released by Blind Faith on their 1969 album Blind Faith. The song was also issued as a single B-side in some countries in 1969 and as an A-side, on the RSO label in the United States, in 1977.

  5. Vertical service code - Wikipedia

    en.wikipedia.org/wiki/Vertical_service_code

    A vertical service code ( VSC) is a sequence of digits and the signals star (*) and pound/hash (#) dialed on a telephone keypad or rotary dial to access certain telephone service features. [1] Some vertical service codes require dialing of a telephone number after the code sequence. On a touch tone telephone, the codes are usually initiated ...

  6. Mobile country code - Wikipedia

    en.wikipedia.org/wiki/Mobile_country_code

    The mobile country code consists of three decimal digits and the mobile network code consists of two or three decimal digits (for example: MNC of 001 is not the same as MNC of 01). The first digit of the mobile country code identifies the geographic region as follows (the digits 1 and 8 are not used): 0: Test networks. 2: Europe.

  7. Harmonized System - Wikipedia

    en.wikipedia.org/wiki/Harmonized_System

    Harmonized System. The Harmonized Commodity Description and Coding System, also known as the Harmonized System ( HS) of tariff nomenclature is an internationally standardized system of names and numbers to classify traded products. It came into effect in 1988 and has since been developed and maintained by the World Customs Organization (WCO ...

  8. Source code - Wikipedia

    en.wikipedia.org/wiki/Source_code

    In computing, source code, or simply code or source, is text (usually plain text) that conforms to a human-readable programming language and specifies the behavior of a computer. A programmer writes code to produce a program that runs on a computer. Since a computer, at base, only understands machine code, source must be translated in order to ...

  9. List of Unicode characters - Wikipedia

    en.wikipedia.org/wiki/List_of_Unicode_characters

    1 Control-C has typically been used as a "break" or "interrupt" key. 2 Control-D has been used to signal "end of file" for text typed in at the terminal on Unix / Linux systems. Windows, DOS, and older minicomputers used Control-Z for this purpose. 3 Control-G is an artifact of the days when teletypes were in use.