Coding-Decoding

Category : 8th Class

WHAT IS CODING?

Coding is a method of expressing something in a secret way.

 

WHAT IS DECODING?

Decoding is a process to understand a code language.

 

TYPES OF CODING

1.    Letter Coding: Letters are used in forward or backward or both the directions for making some code language.

2.    Direct Letter Coding: Letters of a word are directly replaced by other letters.

3.    Number/Symbol Coding: Numerals or symbols are assigned to words.

4.    Substitution Coding: Some particular words are assigned to certain names.

 

 

EXAMPLE

 

 

If OJAMYTIR is the code for MAJORITY, which word is coded as SERPEVRE?

(a) PERSEVER              

(b) PRESERVE      

(c) PERSERVE              

(d) PRESEVER

 

Explanation (b):

Clearly, the code has been obtained by writing the first four and the last four letters of the word in the reverse order.

Thus, we have:

Hence, the correct option is (b).

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