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  2. Digital electronics - Wikipedia

    en.wikipedia.org/wiki/Digital_electronics

    8 Notes. 9 References. ... Digital electronics is a field of electronics involving the study of digital signals and the ... The binary number system was refined by ...

  3. Binary code - Wikipedia

    en.wikipedia.org/wiki/Binary_code

    The modern binary number system, the basis for binary code, is an invention by Gottfried Leibniz in 1689 and appears in his article Explication de l'Arithmétique Binaire (English: Explanation of the Binary Arithmetic) which uses only the characters 1 and 0, and some remarks on its usefulness. Leibniz's system uses 0 and 1, like the modern ...

  4. Binary number - Wikipedia

    en.wikipedia.org/wiki/Binary_number

    To convert a hexadecimal number into its binary equivalent, simply substitute the corresponding binary digits: 3A 16 = 0011 1010 2 E7 16 = 1110 0111 2. To convert a binary number into its hexadecimal equivalent, divide it into groups of four bits. If the number of bits isn't a multiple of four, simply insert extra 0 bits at the left (called ...

  5. Binary-coded decimal - Wikipedia

    en.wikipedia.org/wiki/Binary-coded_decimal

    This scheme can also be referred to as Simple Binary-Coded Decimal (SBCD) or BCD 8421, and is the most common encoding. [12] Others include the so-called "4221" and "7421" encoding – named after the weighting used for the bits – and "Excess-3". [13]

  6. Binary multiplier - Wikipedia

    en.wikipedia.org/wiki/Binary_multiplier

    A binary multiplier is an electronic circuit used in digital electronics, ... a base-2 numeral system ... each long number is multiplied by one digit (either 0 or 1 ...

  7. Gray code - Wikipedia

    en.wikipedia.org/wiki/Gray_code

    If a system has to cycle sequentially through all possible combinations of on-off states of some set of controls, and the changes of the controls require non-trivial expense (e.g. time, wear, human work), a Gray code minimizes the number of setting changes to just one change for each combination of states.

  8. Computer number format - Wikipedia

    en.wikipedia.org/wiki/Computer_number_format

    A computer number format is the internal representation of numeric values in digital device hardware and software, such as in programmable computers and calculators. [1] Numerical values are stored as groupings of bits , such as bytes and words.

  9. Excess-3 - Wikipedia

    en.wikipedia.org/wiki/Excess-3

    The primary advantage of excess-3 coding over non-biased coding is that a decimal number can be nines' complemented [1] (for subtraction) as easily as a binary number can be ones' complemented: just by inverting all bits. [1] Also, when the sum of two excess-3 digits is greater than 9, the carry bit of a 4-bit adder will be set high.