Grey Code

 The Gray Code is a sequence of binary number systems, which is also known as reflected binary code.

The grey code is widely used in security applications, so it is called security code.

the grey code is also called unit distance code because the only one-bit position will change between any two nearby grey codes.

The gray code is a very light weighted code because it doesn't depend on the value of the digit specified by the position. This code is also called a cyclic variable code as the transition of one value to its successive value carries a change of one bit only.

In this code, two consecutive values are differed by one bit of binary digits. Gray codes are used in the general sequence of hardware-generated binary numbers. These numbers cause ambiguities or errors when the transition from one number to its successive is done. This code simply solves this problem by changing only one bit when the transition is between numbers is done.

In Grey code ,we need to focus on 

Convert a binary number to a Gray number :

Let’s understand the algorithm to go from binary to Gray. See the conversion from ‘11101’ binary to its equivalent in Gray code.

Convert a Gray number to a binary number :

Now let’s understand the algorithm to go from Gray to binary. See the conversion from ‘10011’ Gray to its binary equivalent.

binary code  to grey code table: