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  2. 25-pair color code - Wikipedia

    en.wikipedia.org/wiki/25-pair_color_code

    The 25-pair color code, originally known as even-count color code, is a color code used to identify individual conductors in twisted-pair wiring for telecommunications. Color coding [ edit ]

  3. Coupon - Wikipedia

    en.wikipedia.org/wiki/Coupon

    Believed to be the first coupon ever, this ticket for a free glass of Coca-Cola was first distributed in 1888 to help promote the drink. By 1913, the company had redeemed 8.5 million tickets. Coca-Cola's 1888-issued "free glass of" is the earliest documented coupon. Coupons were mailed to potential customers and placed in magazines. It is ...

  4. Gray code - Wikipedia

    en.wikipedia.org/wiki/Gray_code

    One such type of Gray code is the n-ary Gray code, also known as a non-Boolean Gray code. As the name implies, this type of Gray code uses non-Boolean values in its encodings. For example, a 3-ary Gray code would use the values 0,1,2. The (n, k)-Gray code is the n-ary Gray code with k digits.

  5. List of United States FIPS codes by county - Wikipedia

    en.wikipedia.org/wiki/List_of_United_States_FIPS...

    FIPS County or equivalent State or equivalent ; 01001 Autauga County Alabama 01003 Baldwin County: 01005 Barbour County: 01007 Bibb County: 01009 Blount County: 01011 Bullock County ...

  6. Discounted utility - Wikipedia

    en.wikipedia.org/wiki/Discounted_utility

    Discounted utility. In economics, discounted utility is the utility (desirability) of some future event, such as consuming a certain amount of a good, as perceived at the present time as opposed to at the time of its occurrence. [1] It is calculated as the present discounted value of future utility, and for people with time preference for ...

  7. List of Young Dracula characters - Wikipedia

    en.wikipedia.org/wiki/List_of_Young_Dracula...

    Keith-Lee Castle. Count Dracula is a 600-year-old vampire who has emigrated to England from Transylvania with his two children, Ingrid and Vlad, to escape a torch-wielding "angry peasant mob". Although one of the world's most powerful vampires, he has nevertheless decided to keep a low profile. Despite his claims to be the "Prince of Darkness ...

  8. Digital coupon - Wikipedia

    en.wikipedia.org/wiki/Digital_coupon

    Digital coupons (also known as e-coupons, e-clips or clipped deals) are the digital analogue of paper coupons which are used to provide customers with discounts or gifts in order to attract the purchase of some products. Mostly, grocery and drug stores offer e-coupon services in loyalty program events. Even though there are still traditional ...

  9. List of Internet top-level domains - Wikipedia

    en.wikipedia.org/wiki/List_of_Internet_top-level...

    As of 20 May 2017, there were 255 country-code top-level domains, purely in the Latin alphabet, using two-character codes. As of June 2022 [update] , the number was 316, with the addition of internationalized domains.