Exascale computing refers to computing systems that are capable of performing a billion billion (10^18) calculations per second. This level of computational power represents a significant advancement beyond current supercomputers, which are typically capable of performing in the order of petaflops (10^15 calculations per second). Exascale computing is expected to enable breakthroughs in a wide range of scientific and engineering fields, including climate modeling, drug discovery, materials science, and more. However, achieving exascale computing poses significant technical challenges, such as power efficiency, data storage, and software scalability. Researchers in the field of exascale computing are working to develop new technologies and strategies to overcome these challenges and realize the full potential of exascale computing for scientific and societal advancement.