What happens in the system when there is no available memory to perform operations?

When there is no available memory in the system to perform operations, a memory allocation error occurs. In Go, this usually results in a panic with an error message, such as "runtime: out of memory." In such cases, the program crashes unless this situation is handled.

Go uses garbage collection and dynamic memory allocation, but if memory is truly insufficient, execution stops. To avoid this, it is important to monitor memory usage and optimize the code.