A Carry Lookahead Adder (CLA) is a type of digital circuit used for fast binary addition. Unlike traditional adders that calculate carry bits sequentially, a CLA uses a more efficient method to determine carry bits in parallel. This allows it to perform addition operations more quickly, making it suitable for high-speed computing applications. The CLA works by generating two signals: Generate (G) and Propagate (P). The G signal indicates when a carry will be produced, while the P signal shows when a carry will be passed to the next bit. By using these signals, the CLA can compute the final sum and carry outputs in fewer steps.