error correction techniques

Error correction techniques are methods used to detect and fix mistakes in data during transmission or storage. When data travels through networks, it can get corrupted due to noise or interference. To prevent this, extra information called error-correcting codes are added, allowing the receiver to identify and correct errors without needing a resend. These techniques ensure that the received data matches the original, maintaining accuracy and reliability in communication systems such as internet, mobile phones, and data storage devices. In essence, they act like quality checks that keep data error-free despite challenging conditions.