Error detection and correction

Error detection and correction is a way to make sure that information can be accurately sent and received. It is like checking to make sure all the letters in a sentence are correct.

Think of it like you are sending a letter to a friend. You have a friend who only speaks English and you only speak Spanish, so you have to send letters to each other to talk. Whenever you write a letter, you make mistakes sometimes – maybe you misspell a word or forget to add a letter.

To make sure your friend can still understand your letter, you can use error detection and correction. This is like adding extra information to the letter that tells your friend if there are any mistakes in the letter. Then, your friend can use this extra information to figure out what the correct letter should be and so they can understand your message.

So error detection and correction makes sure that the message you are sending is correct and can be understood.