# What is BCD with examples?

Table of Contents

## What is BCD with examples?

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….How to convert BCD to decimal.

Decimal | BCD |
---|---|

2 | 0010 |

3 | 0011 |

4 | 0100 |

5 | 0101 |

## What is BCD representation of?

BCD or binary-coded decimal is a special kind of representation of a decimal number in binary numbers. In binary-coded decimal each individual digit of a number is converted into a binary number, and then by combining them all, the BCD code is generated.

**How do you write BCD code?**

In BCD code, each digit of the decimal number is represented as its equivalent binary number….Example 1: (11110) 2.

Binary Code | Decimal Number | BCD Code |
---|---|---|

0 0 0 1 | 1 | 0 : 0 0 0 1 |

0 0 1 0 | 2 | 0 : 0 0 1 0 |

0 0 1 1 | 3 | 0 : 0 0 1 1 |

0 1 0 0 | 4 | 0 : 0 1 0 0 |

### What is BCD data type?

A binary-coded decimal (BCD) is a type of binary representation for decimal values where each digit is represented by a fixed number of binary bits, usually between four and eight. The norm is four bits, which effectively represent decimal values 0 to 9.

### Is BCD and binary same?

Both have their advantages and disadvantages. BCD is commonly used when decimal numbers must be represented in hardware, as each 4-bit BCD number maps directly to a decimal number. Binary is more efficient for arithmetic, memory storage, and transmitting information, but is less human-readable.

**What is BCD arithmetic?**

BCD or Binary Coded Decimal is that number system or code which has the binary numbers or digits to represent a decimal number. A decimal number contains 10 digits (0-9). Now the equivalent binary numbers can be found out of these 10 decimal numbers.

#### Why BCD is called 8421 code?

The BCD8421 code is so called because each of the four bits is given a ‘weighting’ according to its column value in the binary system. The least significant bit (lsb) has the weight or value 1, the next bit, going left, the value 2.

#### What base is BCD?

The main advantage of binary coded decimal is that it allows easy conversion between decimal (base-10) and binary (base-2) form. However, the disadvantage is that BCD code is wasteful as the states between 1010 (decimal 10), and 1111 (decimal 15) are not used.

**How many bits is a BCD code?**

four bits

Note that the BCD code is 12 bits long since each of the decimal digits is coded by four bits.

## What is the range of BCD number?

What Does Binary-Coded Decimal (BCD) Mean? A binary-coded decimal (BCD) is a type of binary representation for decimal values where each digit is represented by a fixed number of binary bits, usually between four and eight. The norm is four bits, which effectively represent decimal values 0 to 9.

## How many codes are in BCD?

Binary Coded Decimal (BCD) code In the BCD, with four bits we can represent sixteen numbers (0000 to 1111). But in BCD code only first ten of these are used (0000 to 1001). The remaining six code combinations i.e. 1010 to 1111 are invalid in BCD.

**What is excess-3 BCD code?**

The excess-3 code (or XS3) is a non-weighted code used to express code used to express decimal numbers. It is a self-complementary binary coded decimal (BCD) code and numerical system which has biased representation.

### What is Zone in BCD?

Each decimal digit is stored in one byte, with the lower four bits encoding the digit in BCD form. The upper four bits, called the “zone” bits, are usually set to a fixed value so that the byte holds a character value corresponding to the digit.