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  2. Binary code - Wikipedia

    en.wikipedia.org/wiki/Binary_code

    The word 'Wikipedia' represented in ASCII binary code, made up of 9 bytes (72 bits). A binary code represents text, computer processor instructions, or any other data using a two-symbol system. The two-symbol system used is often "0" and "1" from the binary number system. The binary code assigns a pattern of binary digits, also known as bits ...

  3. Genealogical numbering systems - Wikipedia

    en.wikipedia.org/wiki/Genealogical_numbering_systems

    The atree or Binary Ahnentafel method is based on the same numbering of nodes, but first converts the numbers to binary notation and then converts each 0 to M (for Male) and each 1 to F (for Female). The first character of each code (shown as X in the table below) is M if the subject is male and F if the subject is female.

  4. Old English Hexateuch - Wikipedia

    en.wikipedia.org/wiki/Old_English_Hexateuch

    Biblical scene in the Illustrated Old English Hexateuch (11th century) Claudius B.iv. was probably compiled in the second quarter of the 11th century at St Augustine's Abbey , Canterbury. It incorporates translations and a preface by Ælfric of Eynsham , while the remaining parts of the translation were carried out by anonymous authors.

  5. 11th century - Wikipedia

    en.wikipedia.org/wiki/11th_century

    The 11th century is the period from 1001 (represented by the Roman numerals MI) through 1100 (MC) in accordance with the Julian calendar, and the 1st century of the 2nd millennium. In the history of Europe , this period is considered the early part of the High Middle Ages .

  6. List of political entities in the 11th century - Wikipedia

    en.wikipedia.org/wiki/List_of_political_entities...

    This is a list of political entities in the 11th century (1001–1100) AD. It includes both sovereign states and any political predecessors of current sovereign states. Map of the Eastern Hemisphere in 1025 AD

  7. Binary number - Wikipedia

    en.wikipedia.org/wiki/Binary_number

    A binary number may also refer to a rational number that has a finite representation in the binary numeral system, that is, the quotient of an integer by a power of two. The base-2 numeral system is a positional notation with a radix of 2 .

  8. Chen–Ho encoding - Wikipedia

    en.wikipedia.org/wiki/Chen–Ho_encoding

    Chen–Ho encoding is a memory-efficient alternate system of binary encoding for decimal digits.. The traditional system of binary encoding for decimal digits, known as binary-coded decimal (BCD), uses four bits to encode each digit, resulting in significant wastage of binary data bandwidth (since four bits can store 16 states and are being used to store only 10), [1] even when using packed BCD.

  9. Vigenère cipher - Wikipedia

    en.wikipedia.org/wiki/Vigenère_cipher

    In the 19th century, the invention of this cipher, essentially designed by Bellaso, was misattributed to Vigenère. David Kahn, in his book, The Codebreakers lamented this misattribution, saying that history had "ignored this important contribution and instead named a regressive and elementary cipher for him [Vigenère] though he had nothing to ...