Binary-coded decimal: Difference between revisions

Revision as of 15:51, 25 February 2002

Revision as of 02:15, 17 September 2002

Line 1:

'''Binary coded decimal''' (BCD) is a way of encoding numbers in computer memory. In BCD, numbers are represented as decimal digits, and each digit is represented by four [[bit]]s:

<blockquote><tt>

Digit Bits Digit Bits<br>

'''0''' 0000 '''5''' 0101

'''1''' 0001 '''6''' 0110

Line 7:

'''3''' 0011 '''8''' 1000

'''4''' 0100 '''9''' 1001

</tt></blockquote>

To encode a number such as 127, then, one simply encodes each of the decimal digits as above, giving (0001, 0010, 0111).