Programmed I/O in Computer Organization (Hindi) | COA Tutorial

In this video, we explain Programmed I/O, one of the basic techniques for data transfer between the CPU and I/O devices in Computer Organization and Architecture (COA). [Key Topics Covered] ✅ How Programmed I/O works through the System Bus. ✅ The speed mismatch between CPU and I/O devices. ✅ Why the CPU remains "busy" during the entire transfer process. ✅ The performance impact of busy-waiting and polling. [Timestamps] 00:00 - Introduction to Programmed I/O 00:19 - System Bus: CPU, Memory, and I/O Connection 00:43 - The I/O Request Process 01:33 - Speed Difference: CPU vs. Memory vs. I/O Devices 01:58 - Why CPU Performance Degrades (Busy Waiting) 02:29 - Summary and Conclusion #ProgrammedIO #ComputerOrganization #COA #ComputerArchitecture #HindiTutorial #UGCNET #GATE #BCA #CSE #EngineeringExams #UGTutor #CPUPolling