Communications in Computer and Information Science

This book constitutes the refereed conference proceedings of the 5th Asian Symposium on Cellular Automata Technology, ASCAT 2026, held in Calicut, India, during February 25–27, 2026.The 20 full papers included in this book were carefully reviewed and selected from 41 submissions.They focus on cellular automata, both as a technological framework and as a model of computation across diverse fields.