Short for Binary Coded Decimal, BCD is also known as
packet decimal and is
numbers 0 through 9 converted to four digit binary. Below is a table of the decimal
numbers 0 through 9 and the binary conversion.
| Decimal |
BCD |
| 0 |
0000 |
| 1 |
0001 |
| 2 |
0010 |
| 3 |
0011 |
| 4 |
0100 |
| 5 |
0101 |
| 6 |
0110 |
| 7 |
0111 |
| 8 |
1000 |
| 9 |
1001 |
Using this conversion, the number 25, for example, would have a BCD number of 0010 0101 or 00100101. However, in binary, 25 is represented as
11001.
Also see: Binary,
Decimal
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