![Client-Server Model - Hayagriva's penance The asura Hayagrive performs a penance to ask the goddess Durga for the boon of invincibility.](https://contentdeliverance.com/cms-school/wp-content/uploads/2011/05/hayagriva-penance-durga.jpg)
Much of our digital world depends on a little technique discovered out of necessity in the early days of computing. This paradigm of how digital devices communicate and co-operate, makes the entirety of the internet possible and efficient. So to understand information technology and online content delivery methods, you must understand what client-server architecture is.