Goals and Functions of OS

Duration: 5 min

This video lesson is available to enrolled students.

Return to /learn/UP-LT-GRADE-ASSISTANT-TEACHER-2025/cs-06-operating-system/introduction-to-os/os-basics-goals/asset-goals-and-functions-of-os after enrolling

Inside: a video lesson and guided study material.

Module outline

  1. About Course: About the Course
  2. CS | 01 | Digital Logic and Circuits and Discrete Mathematical Structures: Digital Systems & Boolean Basics, Number System, Number Representation, Logic Gates & Hardware, Boolean Expression, Boolean Minimization, Combinational Circuit, Sequential Circuits, Set Theory, Relations, Functions, Graph Theory, Group Theory, Propositional and Predicate Logic, Permutation and Combination
  3. CS | 02 | Computer Organization and Architecture: Basics of COA, Cache Memory Organization, Input Output Organisation, Pipelining, Instr Formats & Modes, Control Unit Design, Multiprocessors
  4. CS | 03 | Data Structures and Algorithm: Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing, Algorithm Analysis, Time Complexity Analysis, Sorting Algorithms, Greedy Algorithms, Dynamic Programming, Minimum Spanning Trees, Shortest Path Algos, Complexity Theory, Advanced Algorithms
  5. CS | 04 | Problem Solving through C Programming: C Fundamentals, Control Flow, Functions, Arrays & Pointers, Storage Classes, Structures & Enums, DMA, Macros, Scoping & File Handling
  6. CS | 05 | Object Oriented Techniques: Object Oriented Technology, Java
  7. CS | 06 | Operating System: Introduction to OS, Process Management, CPU Scheduling, Process Synchronization, Threads & Process Creation, Deadlock, Memory Management, Virtual Memory, Disc Scheduling, File Management, Windows OS, Unix OS
  8. CS | 07 | Database Management Systems: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, Relational Algebra, SQL, Relational Calculus, Transaction Management, Concurrency Control, Database Recovery, Database Security & Authorization, Query Processing & Optimization, File Organization & Indexing
  9. CS | 08 | Computer Networks: Introduction to CN, Data Communication, DLL: Access Control, DLL: Flow Control, DLL: Error Control, DLL: Framing, Data Link Layer - Ethernet, Net Layer: IPv4 & Proto, Net Layer: IP Addressing, Net Layer:Routing Protocol, Transport Layer Services, TL: Congestion & UDP, Application Layer, Hardware basics
  10. CS | 09 | Software Engineering: Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Design, Estimation and Metrics, Software Testing, Software Maintenance and Configuration Management
  11. CS | 10 | Internet Technology, Web Design and Web Technology: Internet Fundamentals, Web Design & Development, Protocols & Services, Web Publishing & Hosting, Server Side & Security, Emerging Technologies, JavaScript-Basics, HTML Basics
  12. CS | 11 | System Analysis And Design: Fundamentals of Systems and Information Systems, SDLC and Development Approaches, Software Documentation and Software Requirements Specification (SRS), SDD and Quality Assurance, Security, Risk Management & Maintenance
  13. CS | 12 | Information Security and Cyber Laws: Cyber Threats and Malware Attacks, Role of Internet and Web Services, Security in Mobile and Wireless Computing, Electronic Data Interchange and E-Commerce, Physical Security and Cryptography Basics, Intrusion Detection Systems (IDS), Cyber Safety and Security
  14. CS | 13 | Computer Graphics: Basics of Computer Graphics, 2-D Geometrical Transforms and Viewing, 3-D Object Representation, Geometric Transformations and Viewing
  15. GS Paper | 01 | Indian and World Geography: Geography
  16. GS Paper | 02 | History: History
  17. GS Paper | 03 | Indian Economy & Social Development: Indian Economy
  18. GS Paper | 04 | General Science: Biology, Chemistry, वैज्ञानिक उपलब्धियाँ और अनुसंधान / Scientific Achievements and Research
  19. GS Paper | 05 | Elementary Maths: संख्या पद्धति / Number System, Divisibility Rules, महत्तम समापवर्तक और लघुत्तम समापवर्त्य / HCF and LCM, प्रतिशत / Percentage, लाभ, हानि और बट्टा / Profit, Loss and Discount, साधारण और चक्रवृद्धि ब्याज / Simple and Compound Interest, अनुपात और समानुपात / Ratio and Proportion, औसत / Average, समय और कार्य / Time and Work, समय, चाल और दूरी / Time, Speed and Distance, Algebra, घन क्षेत्रमिति / Solid Mensuration, आँकड़ा निर्वचन / Data Interpretation, Arithmetic, Statistics, Probability, Sequence and Series (Series), मिश्रण और एलिगेशन / Mixture and Alligation, Calculus, Trigonometry, Vectors, संख्या पद्धति और संख्या सिद्धांत / Number Systems and Number Theory, यूक्लिडीय ज्यामिति और क्षेत्रमिति / Euclidean Geometry and Mensuration, सांख्यिकी और प्रायिकता / Statistics and Probability, निर्देशांक ज्यामिति, सदिश और त्रिविमीय ज्यामिति / Coordinate Geometry, Vectors and 3D Geometry, बहुपद, समीकरण और सम्मिश्र संख्याएँ / Polynomials, Equations and Complex Numbers, समतल क्षेत्रमिति / Plane Mensuration, सरलीकरण, घातांक और करणी / Simplification, Indices and Surds, समुच्चय, संबंध, फलन और विविक्त गणित / Sets, Relations, Functions and Discrete Mathematics
  20. GS Paper | 06 | Indian Polity and Governance: Polity
  21. GS Paper | 07 | Current Events: समसामयिकी / Current Affairs
  22. UPLT Live Classes Notes: UPLT Live Classes
  23. UPLT Full Mock Tests Tier 1:
  24. UPLT Full Mock Tests Tier 2:
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This lecture introduces the goals and functions of an operating system, emphasizing that goals are the ultimate destination while functions implement them. The instructor distinguishes primary goals (convenience and user-friendliness) from secondary goals (efficiency, reliability, and maintainability). To illustrate efficiency and resource usage, the lecture uses a visual analogy comparing a large DSLR camera with a compact action camera, showing settings such as 4K resolution and 30 FPS. A Government of India slide with hand-drawn ovals for “Ministries 58” and “Departments 53” is used as an organizational analogy. The lesson then returns to the goals slide with check marks and transitions to a functions slide listing process management, memory management, and I/O device management. A hexagon diagram centers on “Operating system Components,” surrounded by file, process, and I/O device management.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The opening slide is titled “Goals and Functions of operating system.” The instructor points to the underlined title and explains that goals are the ultimate destination, but functions are followed to implement them. The slide lists primary goals as “Convenience / user friendly” and secondary goals as “Efficiency (Using resources in efficient manner) / Reliability / maintainability.” The instructor uses gestures to distinguish these categories, with the slide text sometimes partially obscured.

  2. 2:00 – 5:00 02:00-05:00

    The lecture continues the goals discussion and then uses a camera analogy to illustrate efficiency. A split-screen shows a large DSLR camera beside a small action camera; the instructor holds up the action camera and its screen displays video settings including “RES 4K,” “FPS 30,” and “FOV WIDE.” This comparison likely demonstrates how different systems balance capability and resource use. The presentation then shows a Government of India slide with the emblem and “Sabka Saath, Sabka Vikas,” annotated with hand-drawn ovals reading “Ministries 58” and “Departments 53,” serving as an organizational analogy.

  3. 5:00 – 5:27 05:00-05:27

    The instructor returns to the “Goals and Functions of operating system” slide, now marked with hand-drawn check marks beside primary and secondary goals. The lesson transitions to a slide titled “Functions of operating system,” listing “Process management,” “Memory management,” and “I/O device management.” The first two items are circled by hand. A hexagon diagram on the right centers on “Operating system Components,” surrounded by “File Management,” “Process Management,” and “I/O Device Management.”

The lecture builds from abstract OS goals to concrete functions. It first defines the relationship between goals and functions, then classifies goals into primary user-oriented objectives and secondary system-quality objectives. The camera analogy makes efficiency tangible by contrasting a high-capability DSLR with a compact action camera, while the Government of India slide provides an organizational structure analogy. The final transition to functions and components connects these goals to core OS responsibilities: process, memory, I/O device, and file management. For revision, remember that goals are the destination (convenience, efficiency, reliability, maintainability) and functions are the implementation mechanisms, with process management, memory management, I/O device management, and file management as central components.

Loading lesson…