Error detection codes are crucial for maintaining data integrity during data transmission and storage. These codes help detect errors that may occur due to noise or interference, ensuring data accuracy and reliability. Common methods in error detection include:

• Parity Bits: Adds a bit to data to make the number of 1s either even (even parity) or odd (odd parity).
• Checksums: Used to verify data integrity by summing data values.
• Cyclic Redundancy Checks (CRC): Detects errors in digital networks and storage devices through polynomial division.

Understanding error detection codes allows MCA students to comprehend how systems prevent data corruption in communication channels, storage, and processing.