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  2. IBM Naval Ordnance Research Calculator - Wikipedia

    en.wikipedia.org/wiki/IBM_Naval_Ordnance...

    Each word consisted of 16 decimal digits, using four bits to represent each digit, plus two modulo-4 error-checking bits. A word could store a 13-digit number with sign and 2-digit index, or one instruction. NORC used four sets of 66 electrostatic tubes in parallel for memory.

  3. Lychrel number - Wikipedia

    en.wikipedia.org/wiki/Lychrel_number

    No base contains any Lychrel numbers smaller than the base. In fact, in any given base b, no single-digit number takes more than two iterations to form a palindrome. For b > 4, if k < b/2 then k becomes palindromic after one iteration: k + k = 2k, which is single-digit in base b (and thus a palindrome). If k > b/2, k becomes palindromic after ...

  4. Electronic navigational chart - Wikipedia

    en.wikipedia.org/wiki/Electronic_navigational_chart

    An Electronic Navigational Chart (ENC) is a digital representation of a real-world geographical area for the purpose of Marine navigation.Real-world objects and areas of navigational significance, or to a lesser degree - informational significance, are portrayed through Raster facsimiles of traditional paper charts; or more commonly through vector images, which are able to scale their relative ...

  5. Adder (electronics) - Wikipedia

    en.wikipedia.org/wiki/Adder_(electronics)

    With the addition of an OR gate to combine their carry outputs, two half adders can be combined to make a full adder. [2] The half adder adds two input bits and generates a carry and sum, which are the two outputs of a half adder. The input variables of a half adder are called the augend and addend bits. The output variables are the sum and carry.

  6. Verbal arithmetic - Wikipedia

    en.wikipedia.org/wiki/Verbal_arithmetic

    Verbal arithmetic, also known as alphametics, cryptarithmetic, cryptarithm or word addition, is a type of mathematical game consisting of a mathematical equation among unknown numbers, whose digits are represented by letters of the alphabet.

  7. Today’s NYT ‘Strands’ Hints, Spangram and Answers for Friday ...

    www.aol.com/today-nyt-strands-hints-spangram...

    Here are the first two letters for each word: FO. FE. EV. LO. MI. AL (SPANGRAM) NYT Strands Spangram Answer Today. Today's spangram answer on Friday, December 13, 2024, is ALBUMTITLE.

  8. How to Block Annoying Emails for Good - AOL

    www.aol.com/block-annoying-emails-good-190739065...

    Ready to finally stop getting those pesky spam emails? Here's how to block them—and clean up your inbox for good. The post How to Block Annoying Emails for Good appeared first on Reader's Digest.

  9. Aiken code - Wikipedia

    en.wikipedia.org/wiki/Aiken_code

    The following weighting is obtained for the Aiken code: 2-4-2-1. One might think that double codes are possible for a number, for example 1011 and 0101 could represent 5. However, here one makes sure that the digits 0 to 4 are mirror image complementary to the numbers 5 to 9.