COA | Unit-1 | Lecture-66 | Bus Transfer - Using 3 State Buffers | AKTU B.Tech Computer Science

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In this video, we explain the concept of Bus Transfer using Tri-State Buffer — an important technique used in computer systems to allow multiple devices to share a common bus without causing data conflicts.

You’ll learn how tri-state buffers work, why they are essential in bus-oriented architectures, and how they enable controlled data transfer between registers, memory, and I/O devices.
We cover all important concepts including:

🔹 What is a Tri-State Buffer?
🔹 Three States: 0, 1, and High-Impedance (Z)
🔹 Need for Tri-State Buffers in Bus Systems
🔹 Bus Transfer Mechanism Using Tri-State Buffers
🔹 Enable and Disable Control Signals
🔹 How Multiple Registers Share a Common Bus
🔹 Advantages of Tri-State Buffers
🔹 Comparison with Multiplexer-Based Bus Transfer

With clear block diagrams, signal flow explanation, and step-by-step working, this lecture helps you visualize how data is safely transferred over a common bus using tri-state buffers.

This topic is part of Unit 1 – Introduction to COA in the AKTU COA syllabus and is very important for GATE, NET, and competitive exams in Computer Science.

📚 Stay tuned for more concept-based lectures on COA, OS, DBMS, DS, TOC, Java, and Python.
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Видео COA | Unit-1 | Lecture-66 | Bus Transfer - Using 3 State Buffers | AKTU B.Tech Computer Science канала CS Pathshala | Vishvendra Chaudhary