BCS401 Operating System Syllabus
AKTU B.Tech · 4th Semester · Unit-wise syllabus (effective 2023-24)
BCS401 Operating System (also written as KCS401) is a subject in Semester 4 of the AKTU B.Tech programme, prescribed by Dr. A.P.J. Abdul Kalam Technical University. It carries 4 credits with an L-T-P of 3-1-0. The syllabus is divided into 5 units: Introduction, Concurrent Processes, CPU Scheduling and Deadlock, Memory Management, I/O Management and Disk Scheduling and File System. The complete unit-wise topic list, course outcomes and reference books are given below, taken from the official AKTU syllabus effective from 2023-24.
BCS401 Subject Details
| Subject Code | BCS401 / KCS401 |
|---|---|
| Subject Name | Operating System |
| University | Dr. A.P.J. Abdul Kalam Technical University (AKTU) |
| Course | B.Tech (Bachelor of Technology) |
| Year / Semester | 2nd Year · 4th Semester |
| Credits | 4 |
| L-T-P | 3-1-0 |
| Total Units | 5 |
| Scheme Effective From | 2023-24 |
| Last Verified | 2026-08-19 |
BCS401 Operating System Unit-Wise Syllabus
Official AKTU syllabus (effective 2023-24) — 5 units.
Unit 1: Introduction
Introduction : Operating system and functions, Classification of Operating systems- Batch, Interactive, Time sharing, Real Time System, Multiprocessor Systems, Multiuser Systems, Multiprocess Systems, Multithreaded Systems, Operating System Structure- Layered structure, System Components, Operating System services, Reentrant Kernels, Monolithic and Microkernel Systems.
Unit 2: Concurrent Processes
Concurrent Processes: Process Concept, Principle of Concurrency, Producer / Consumer Problem, Mutual Exclusion, Critical Section Problem, Dekker’s solution, Peterson’s solution, Semaphores, Test and Set operation; Classical Problem in Concurrency- Dining Philosopher Problem, Sleeping Barber Problem; Inter Process Communication models and Schemes, Process generation.
Unit 3: CPU Scheduling · Deadlock
CPU Scheduling: Scheduling Concepts, Performance Criteria, Process States, Process Transition Diagram, Schedulers, Process Control Block (PCB), Process address space, Process identification information, Threads and their management, Scheduling Algorithms, Multiprocessor Scheduling. Deadlock: System model, Deadlock characterization, Prevention, Avoidance and detection, Recovery from deadlock.
Unit 4: Memory Management
Memory Management: Basic bare machine, Resident monitor, Multiprogramming with fixed partitions, Multiprogramming with variable partitions, Protection schemes, Paging, Segmentation, Paged segmentation, Virtual memory concepts, Demand paging, Performance of demand paging, Page replacement algorithms, Thrashing, Cache memory organization, Locality of reference.
Unit 5: I/O Management and Disk Scheduling · File System
I/O Management and Disk Scheduling: I/O devices, and I/O subsystems, I/O buffering, Disk storage and disk scheduling, RAID. File System: File concept, File organization and access mechanism, File directories, and File sharing, File system implementation issues, File system protection and security.
BCS401 Course Outcomes
- At the end of course , the student will be able to understand
- CO 1 Understand the structure and functions of OS K1, K2
- CO 2 Learn about Processes, Threads and Scheduling algorithms. K1, K2
- CO 3 Understand the principles of concurrency and Deadlocks
- CO 4 Learn various memory management scheme K2
- CO 5 Study I/O management and File systems. K2
- K2,K4
- DETAILED SYLLABUS
- 3-0-0
BCS401 Reference Books
- Silberschatz, Galvin and Gagne, “Operating Systems Concepts”, Wiley
- Sibsankar Halder and Alex A Aravind, “Operating Systems”, Pearson Education
- Harvey M Dietel, “ An Introduction to Operating System”, Pearson Education
- D M Dhamdhere, “Operating Systems : A Concept based Approach”, 2nd Edition,
- TMH 5. William Stallings, “Operating Systems: Internals and Design Principles ”, 6th Edition, Pearson Education
Frequently Asked Questions about BCS401
What is the syllabus of BCS401 Operating System?
The AKTU BCS401 Operating System syllabus is divided into 5 units: Introduction; Concurrent Processes; CPU Scheduling and Deadlock; Memory Management; I/O Management and Disk Scheduling and File System. The complete topic list for each unit is published on this page, taken from the official Dr. A.P.J. Abdul Kalam Technical University syllabus effective from 2023-24.
How many units are there in BCS401?
BCS401 Operating System has 5 units in the AKTU syllabus, with an L-T-P (Lecture-Tutorial-Practical) structure of 3-1-0 and 4 credits.
Is BCS401 the same subject as KCS401?
Yes. AKTU renumbered its B.Tech subject codes from the 2022-23 session onwards, so the same subject appears as BCS401 and KCS401 depending on the scheme year. The syllabus content is the same.
Which semester is BCS401 taught in?
BCS401 Operating System is taught in Semester 4 of the 2nd year of the AKTU B.Tech programme.
How many credits is BCS401 worth?
BCS401 Operating System carries 4 credits in the AKTU evaluation scheme, with an L-T-P of 3-1-0.
Where can I download BCS401 previous year question papers?
All AKTU BCS401 Operating System previous year question papers are available to download free on Ryzenstudy, with no login or registration required.
Is this the official AKTU syllabus for BCS401?
Yes. Every topic on this page is taken from the official Dr. A.P.J. Abdul Kalam Technical University syllabus document (AKTU B.Tech 2nd Year CSE Syllabus), effective from 2023-24. A direct link to the original AKTU PDF is provided at the top of this page. Last verified on 2026-08-19.
Related AKTU Syllabus
Source: Dr. A.P.J. Abdul Kalam Technical University official syllabus — AKTU B.Tech 2nd Year CSE Syllabus, effective from 2023-24. Ryzenstudy is not affiliated with AKTU. Content last verified on 2026-08-19.