Academic Session 2025-26
ODD Semester Jul-Dec 2025
UNIVERSITY INSTITUTE OF ENGINEERING
DEPARTMENT OF COMPUTER SCIENCE &
ENGINEERING
BACHELOR OF ENGINEERING
CSE/IT/ THIRD SEMESTER
COMPUTER ORGANIZATION & ARCHITECTURE
(24CST-201/24ITT-201)
Unit No. 3 Chapter No. 3.1 Lecture No. 3.1.2
Topic : Interrupts
Er. Shikha Atwal (E11186) Assistant Professor
, Learning Objectives
1
1. To understand the concept of interrupts and their role in
temporarily halting CPU operations to handle external or
internal events.
2. To learn different types of interrupts (hardware,
software, maskable, non-maskable) and their triggering
mechanisms.
3. To analyze how interrupt handling improves efficiency,
supports real-time processing, and allows asynchronous
event management in computer systems.
, Content
2
1. Interrupts
2. Types of Interrupts
3. Handling of Interrupts by CPU
4. Polling vs. Interrupts
5. Types of Interrupt Priority Schemes
6. Interrupt Vector Table
7. Mapping of ISR through IVT
8. Interrupt Triggering Methods
ODD Semester Jul-Dec 2025
UNIVERSITY INSTITUTE OF ENGINEERING
DEPARTMENT OF COMPUTER SCIENCE &
ENGINEERING
BACHELOR OF ENGINEERING
CSE/IT/ THIRD SEMESTER
COMPUTER ORGANIZATION & ARCHITECTURE
(24CST-201/24ITT-201)
Unit No. 3 Chapter No. 3.1 Lecture No. 3.1.2
Topic : Interrupts
Er. Shikha Atwal (E11186) Assistant Professor
, Learning Objectives
1
1. To understand the concept of interrupts and their role in
temporarily halting CPU operations to handle external or
internal events.
2. To learn different types of interrupts (hardware,
software, maskable, non-maskable) and their triggering
mechanisms.
3. To analyze how interrupt handling improves efficiency,
supports real-time processing, and allows asynchronous
event management in computer systems.
, Content
2
1. Interrupts
2. Types of Interrupts
3. Handling of Interrupts by CPU
4. Polling vs. Interrupts
5. Types of Interrupt Priority Schemes
6. Interrupt Vector Table
7. Mapping of ISR through IVT
8. Interrupt Triggering Methods
