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  2. Personal identification number - Wikipedia

    en.wikipedia.org/wiki/Personal_identification_number

    Personal identification number. A personal identification number ( PIN ), or sometimes redundantly a PIN number or PIN code, is a numeric (sometimes alpha-numeric) passcode used in the process of authenticating a user accessing a system. The PIN has been the key to facilitating the private data exchange between different data-processing centers ...

  3. Postal Index Number - Wikipedia

    en.wikipedia.org/wiki/Postal_Index_Number

    Sorting district 2-digit postcode areas in India (defined through the first two PIN digits) The third digit of a PIN, combined with the first two digits, represents a specific geographical region (except in the case of the functional zone for the Army) called a sorting district that is headquartered at the main post office of the largest city in the region and is known as the sorting office.

  4. James Goodfellow - Wikipedia

    en.wikipedia.org/wiki/James_Goodfellow

    1937 (age 85-86) Paisley, Renfrewshire, Scotland, United Kingdom. Nationality. Scottish. Known for. Inventing the PIN and modern ATM and. James Goodfellow OBE, KCHS, FIIE (born 1937) is a Scottish inventor. In 1966, he patented personal identification number (PIN) technology and an automated teller machine (ATM).

  5. ZIP Code - Wikipedia

    en.wikipedia.org/wiki/ZIP_code

    A ZIP Code (an acronym for Zone Improvement Plan) is a system of postal codes used by the United States Postal Service (USPS). The term ZIP was chosen to suggest that the mail travels more efficiently and quickly (zipping along) when senders use the code in the postal address. Introduced on July 1, 1963, the basic format comprised five digits.

  6. Postal code - Wikipedia

    en.wikipedia.org/wiki/Postal_code

    A postal code (also known locally in various English-speaking countries throughout the world as a postcode, post code, PIN or ZIP Code) is a series of letters or digits or both, sometimes including spaces or punctuation, included in a postal address for the purpose of sorting mail . As of August 2021, the Universal Postal Union lists 160 ...

  7. Pigpen cipher - Wikipedia

    en.wikipedia.org/wiki/Pigpen_cipher

    The pigpen cipher (alternatively referred to as the masonic cipher, Freemason's cipher, Rosicrucian cipher, Napoleon cipher, and tic-tac-toe cipher) [2] [3] is a geometric simple substitution cipher, which exchanges letters for symbols which are fragments of a grid. The example key shows one way the letters can be assigned to the grid.

  8. Postcodes in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/Postcodes_in_the_United...

    In January 1959 the Post Office analysed the results of a survey on public attitudes towards the use of postal codes, choosing a town in which to experiment with codes. The envisaged format was a six-character alphanumeric code with three letters designating the geographical area and three numbers to identify the individual address. [10]

  9. John Shepherd-Barron - Wikipedia

    en.wikipedia.org/wiki/John_Shepherd-Barron

    Occupation. Inventor. Known for. Inventing the cash machine (ATM) Spouse. Caroline Murray (m. 1953) Children. 3. John Adrian Shepherd-Barron OBE (23 June 1925 – 15 May 2010 [2]) was an India-born British inventor, who led the team that installed the first cash machine, sometimes referred to as the automated teller machine or ATM.