BCD Codes
BCD Codes
Binary Coded Decimal(BCD)
Is one of the early Computer Codes.The Idea of this coding schema is to convert each digit of a decimal number into its binary equivalent instead of converting the entire decimal value into a binary number.This makes the Conversion process easier.
Following table illustrate coding of alphabetic and numeric characters in BCD:
|
Character |
BCD CODE |
Octal Equivalent |
|
|
Zone |
Digit |
||
| A | 11 | 0001 | 61 |
| B | 11 | 0010 | 62 |
| C | 11 | 0011 | 63 |
| D | 11 | 0100 | 64 |
| E | 11 | 0101 | 65 |
| F | 11 | 0110 | 66 |
| G | 11 | 0111 | 67 |
| H | 11 | 1000 | 70 |
| I | 11 | 1001 | 71 |
| J | 10 | 0001 | 41 |
| K | 10 | 0010 | 42 |
| L | 10 | 0011 | 43 |
| M | 10 | 0100 | 44 |
| N | 10 | 0101 | 45 |
| O | 10 | 0110 | 46 |
| P | 10 | 0111 | 47 |
| Q | 10 | 1000 | 50 |
| R | 10 | 1001 | 51 |
| S | 01 | 0010 | 22 |
Since in BCD 8 and 9 require 4 bits, all decimal digits are represented in BCD by 4 bits.
While converting Decimal to Binary Equivalent we saw that 4210 is equal to 1010102.
Converting Decimal in BCD code
Converting 4210 into BCD:
4210=
The code for 4 and 2 is
0100=4
0010=2
Hence 4210 in BCD equivalent to 01000010.
BCD is _______________________ | |||
| Right Option : A | |||
| View Explanation | |||
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