In BCD each digit of a decimal number is coded as a separate 4 bit binary number between 0 and 9.
For example:
Decimal 12 in BCD is shown as 0001 0010 (Binary 1 and Binary 2), in Binary it is 1100.
A: A BCD code must be decoded to provide a seven digit output to the 7 bars display that is the only way to see the binary number visually.
what is weighted codes: The decimal value of a code is obtained summing up the positional values. weghted binary code s are those which obey positional weighting principle. each position of number represents a specific weight. There are millions of weighted code The most common one is 8421 Non weighted codes: This codes are not positionaly weghted. each position with in the binary no is not assgned to afixed value.Examples of nonweghted code is ASCCI, GREY CODE, EBCDIC CODE etc
BCD codes,gray code,error detecting code,ASCII character code,Excess 3 code
Binary coded decimal (BCD) is easier to convert between displayed or printed form than is pure binary.
In BCD it is 00100111 In Binary, which is what you mean, it is 101111
BCD is used for binary output on devices that only display decimal numbers.
41 in decimal is 0100 0001 in BCD (this is 8 bits not 6 bits)41 in decimal is 101001 in binary (this is 6 bits, but binary not BCD)There is no 6 bit BCD representation of the decimal number 41!
I wants to know the advantages of 4 Bit BCD/Binary UP/DOWN
ASCII (American Standard Code for Information Interchange) and BCD (Binary Coded Decimal) are standards for storing information in the binary sytem. ASCII is used for storing alphabetic, numeric, symbols, and control characters in 8-bit binary, and BCD is used for storing numbers 0-9 in 4-bit binary.
Example Binary 00111000 Convert to Decimal 56 Convert to BCD by using groups of four binary numbers for each digit 5 6 0101 0110
binary-coded decimal
Decimal 30 = binary 11110. The decimal binary code (BCD), however, is 11 0000.