Congestion Control is a technique used in computer networks to manage data traffic and prevent network overload. When too many data packets are sent simultaneously, it can lead to delays, packet loss, and reduced performance. Congestion control helps ensure that data flows smoothly by regulating the amount of data sent and adjusting transmission rates based on network conditions. There are various algorithms for Congestion Control, such as TCP Tahoe and TCP Reno, which monitor network traffic and respond to congestion signals. These algorithms help maintain optimal performance by slowing down data transmission when congestion is detected and gradually increasing it when the network stabilizes.