Table of Contents
What is BCD code and its importance?
Binary Coded Decimal, or BCD, is another process for converting decimal numbers into their binary equivalents. It is a form of binary encoding where each digit in a decimal number is represented in the form of bits. This encoding can be done in either 4-bit or 8-bit (usually 4-bit is preferred).
What are the applications of BCD code?
In computing and electronic systems, binary-coded decimal (BCD) is an encoding for decimal numbers in which each digit is represented by its own binary sequence. Its main virtue is that it allows easy conversion to decimal digits for printing or display and faster decimal calculations.
What are the merits and demerits of BCD codes?
The main advantage of binary coded decimal is that it allows easy conversion between decimal (base-10) and binary (base-2) form. The disadvantage is that BCD code is wasteful as the states between 1010 (decimal 10), and 1111 (decimal 15) are not used.
What is the purpose of gray code?
Gray codes are widely used to prevent spurious output from electromechanical switches and to facilitate error correction in digital communications such as digital terrestrial television and some cable TV systems.
What are the uses of BCD to decimal decoder?
A BCD code applied to the four inputs, A to D, results in a high level at the selected one of 10 decimal decoded outputs. Similarly, a 3-bit binary code applied to inputs A through C is decoded in octal code at output 0 to 7 if D = “0”.
Is BCD a self complementing code?
This code has all positive weights. Sum of weights of unnatural BCD codes is equal to 9. It is a self-complementing code. Self-complementing codes provide the 9’s complement of a decimal number, just by interchanging 1’s and 0’s in its equivalent 2421 representation.
Is BCD an alphanumeric code?
BCD (binary-coded decimal), also called alphanumeric BCD, alphameric BCD, BCD Interchange Code, or BCDIC, is a family of representations of numerals, uppercase Latin letters, and some special and control characters as six-bit character codes.
What is the advantage of BCD over binary code?
BCD means Binary coded decimal, its advantage is it can represent decimal numbers in the form of binary value says (0000-0 to 1001-9). Excess 3 code is an example of non weighted codes since the position of each bits in excess 3 code does not have weights says like ones, tens, hundred in decimal and 2^0,2^1,2^2, in binary.
What is BCD in computer network?
Binary Coded Decimal, or BCD, is another process for converting decimal numbers into their binary equivalents. It is a form of binary encoding where each digit in a decimal number is represented in the form of bits. This encoding can be done in either 4-bit or 8-bit (usually 4-bit is preferred).
What are the benefits of BCD over floating point?
If by BCD you’re referring to Binary Coded Decimal, then the main benefit is the elimination of rounding error inherent in using standard binary floating point representations and then converting those back to decimal representation when displaying a value, as there are values in decimal that can’t be exactly represented in binary floating point.
What is the difference between BCD and decimal numbers?
In BCD we will use binary numbers from 0000-1001, which are equivalent to decimal 0-9. Using the decimal number 5 for example, 5 in BCD is represented by 0101 and 2 in BCD is represented by 0010 and 15 in BCD is represented by 0001 0101.