VTU Notes | 18EC35 | COMPUTER ORGANIZATION AND ARCHITECTURE

VTU 18EC35 Module-3 | Input/Output Organization

Module-3

4.9
2018 Scheme | ECE Department

Created by VtuNotes.in
·
5 Modules

18EC35 | COMPUTER ORGANIZATION AND ARCHITECTURE | Module-3 VTU Notes

Summary:

Input/Output Organization is a crucial concept in computer systems, especially for students studying under VTU (Visvesvaraya Technological University) curriculum. This concept revolves around efficiently managing the communication between a computer's central processing unit (CPU) and its various input/output (I/O) devices. Here's a brief summary of the key aspects covered in this topic:

1. Accessing I/O Devices:

This aspect focuses on the methods and mechanisms used to interact with I/O devices such as keyboards, mice, displays, and storage devices. It includes addressing, data transfer, and control signals required for seamless communication.

2. Interrupts:

Interrupts are essential for handling asynchronous events or requests from I/O devices. This part of the concept discusses interrupt hardware, which includes interrupt request lines and interrupt controllers.

3. Enabling and Disabling Interrupts:

To ensure proper handling of interrupts, it's vital to understand how to enable and disable them. This control allows the CPU to manage the flow of interrupts effectively.

4. Handling Multiple Devices:

Modern computer systems have numerous I/O devices, and managing them simultaneously is essential. This section explores methods for prioritizing and managing multiple device requests and interactions.

5. Controlling Device Requests:

Controlling device requests involves coordinating the communication between the CPU and I/O devices efficiently. Topics may include device registers, status checks, and command/response sequences.

6. Direct Memory Access (DMA):

DMA is a technique that enables high-speed data transfers between memory and I/O devices without CPU intervention. This section delves into the principles and mechanisms of DMA controllers and how they enhance I/O operations.

Understanding Input/Output Organization is critical for designing efficient and responsive computer systems. It enables students to grasp the intricate details of how data is exchanged between the CPU and various peripherals, ultimately contributing to their knowledge of computer architecture and system design.

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