• Cadenti
  logic family
  medium scale integration
  metal oxide semiconductor
  ac register
  accumulator logic
  adder circuit
  basic computer design
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  input register
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  logic adder circuits
  logic gates
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  clock pulse
  data types
  decimal numbers
  

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Weighted code

The 2421 is an example of a weighted code. In a weighted code, the bits are multiplied by the weights indicated and the sum of the weighted bits gives the decimal digit. For example, the bit combination 1101, when weighted by the respective digits 2421, gives the decimal equivalent of 2 X 1+ 4 x 1+ 2 x 0 + 1 + 1 = 7. The BCD code can be assigned the weights 8421 and for this reason it is sometimes called the 8421 code.

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