Types of Real Time Operating System

Duration: 4 min

This video lesson is available to enrolled students.

Return to /learn/RSSB-INFORMATICS-ASSISTANT/computer-fundamentals-operating-systems/introduction-to-os/os-types-evolution/asset-types-of-real-time-operating-system after enrolling

Inside: a video lesson and guided study material.

Module outline

  1. Numerical Ability & Problem Solving: Speed Mathematics and Basic Mathematics, Arithmetic, Number System, HCF LCM, Divisibility Rules, Percentage, Ratio and Proportion (Ratios), Average, Profit and Loss, Simple Interest and Compound Interest, Mixture and Alligation, Time and Work, Pipe and Cistern, Speed Time and Distance, Age Problems, Partnership, Data Interpretation, Mental Ability, Sequence and Series (Series), Powers and Exponents (Surds and Indices), Algebra, Statistics, Logarithm, Mensuration and Geometry, Permutation and Combination, Probability, Sequences and Series, Powers, Surds and Logarithms, Subject-Verb Agreement, Sentence Completion, Geometry, Sentence Structure and Correction, Data Sufficiency, Trigonometry, Measurement and Quantity Take-Off, Signal Space and Optimum Detection, Probability, Statistics, Algebra, Time and Work, Speed, Time and Distance, Data Interpretation, Combinatorics
  2. Logical Reasoning: Series (Number and Letter Series) (Numerical Relations and Reasoning), Coding Decoding, Data Sufficiency, Syllogisms, Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Seating Arrangements, Blood Relations, Directions (Direction Test), Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning), Analytical Reasoning (Counting Figures Reasoning), Puzzle Solving (Puzzles), Calendar, Clock, Cubes & Dices, Logical Sequence Of Words, Venn Diagram, Data Arrangement, Inequality, Analogy, Ranking, Order and Sequence, Selection Decision Table (Decision Making), Alphabet and Word Tests, Numerical Reasoning, Number System, Averages, Mixtures and Alligation, Percentages, Series Completion, Analogy and Classification, Patterns in Two-Dimensional Figures, Coding and Decoding, Mathematical Operations, Direction Sense, Logical Deduction and Induction, Syllogisms and Venn Diagrams, Critical Reasoning, Order, Ranking and Sequence, Reading Comprehension, Profit, Loss and Discount, Constraint Puzzles, Traverse Surveying, Ratio and Proportion, Mensuration, Permutations and Combinations, Clocks and Calendars, Assembling and Grouping of Shapes, Transformation of Shapes, Three-Dimensional Patterns and Visualization, Cubes and Dice, Vocabulary, Blood Relations
  3. General Knowledge & Current Affairs (India + Rajasthan): History, Geography, Polity, Indian Economy, Static General Knowledge, State Wise GK, GK- Current Affairs, Environment, Physics
  4. Computer Fundamentals & Operating Systems: Basics of COA, Floating Point Rep, Digital Systems & Boolean Basics, Number Representation, Number System, Introduction to OS, File Management, Windows OS, Unix OS, Linux OS, Register Transfer and Microoperations, Virtual Memory
  5. Computer Networks: Introduction to CN, Data Communication, DLL: Error Control, DLL: Access Control, Data Link Layer - Ethernet, Net Layer: IPv4 & Proto, Application Layer, Hardware Basics, Network Security
  6. Cyber Security: 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, Ethical Hacking
  7. Programming (C & OOP): C Fundamentals, Control Flow, Arrays & Pointers, Functions, Storage Classes, Structures & Enums, DMA, Macros, Scoping & File Handling, OOPS with C++, Operators & Expressions, Sorting Algorithms, Java Fundamentals, Java
  8. MS Office & Data Processing: MS Office Applications, Basics of DBMS
  9. Internet & Web Technology: Society, Law & Ethics, Terms & Abbreviations, Keyboard Shortcuts, Emerging Tech Trends, Artificial Intelligence, Emerging Technologies, Internet Fundamentals, Website, Browser & Services, Web Design & Development, Protocols & Services, Web Publishing & Hosting, Server Side & Security
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This educational video provides a comparative analysis of Hard and Soft Real-Time Operating Systems (RTOS). The instructor begins by defining Hard Real-Time OS, emphasizing its strict adherence to deadlines where failure to meet a deadline results in total system failure. The lecture then transitions to Soft Real-Time OS, explaining that while it has deadlines, missing them does not cause catastrophic failure but rather a degradation in performance. Visual aids, including graphs plotting "Value/Usefulness" against "time," are used to illustrate the distinct behaviors of these systems. Examples such as automotive safety systems and video games are provided to contextualize the theoretical concepts for students.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The segment introduces the "Hard real-time operating system" via a slide containing specific text and a graph. The on-screen text states that this OS is "predicted by a deadline" and reacts at "time t = 0." The instructor underlines key phrases like "hard real-time" and examples including "air bag control in cars," "anti-lock brake," and "engine control system." A graph is displayed with "Value/Usefulness" on the y-axis and "time" on the x-axis. A red line represents the system's value, remaining constant until a specific "deadline" point, after which it drops vertically to zero. The instructor uses a red pen to draw on the slide to emphasize that missing the deadline renders the system useless. A background image of a control room with operators reinforces the critical nature of these systems. The core takeaway is that in Hard RTOS, meeting the deadline is mandatory; otherwise, the consequence is failure.

  2. 2:00 – 3:52 02:00-03:52

    The lecture shifts to "Soft real-time operating system." The slide text explains that deadlines "may be missed" and action is taken at "time t=0+." It notes that this OS "does not contain constrained to extreme rules" and critical time is "delayed to some extent." The instructor underlines examples such as "digital camera," "mobile phones," and "online data." The accompanying graph shows a green line that stays constant until the deadline, then slopes downward gradually rather than dropping instantly. The instructor draws on the graph to show this gradual decline in value. An image from the game "PlayerUnknown's Battlegrounds" is shown as a visual example. The explanation highlights that while performance degrades after the deadline, the system remains functional, unlike the Hard RTOS where value becomes zero immediately.

The video effectively contrasts Hard and Soft Real-Time Operating Systems by focusing on deadline strictness and the consequences of missing them. Hard RTOS is characterized by a binary outcome where value is either full or zero, suitable for safety-critical applications. Soft RTOS allows for flexibility, where value degrades over time, making it suitable for multimedia and consumer electronics. This distinction is crucial for understanding system design requirements in embedded computing and selecting the appropriate OS for specific hardware constraints.

Loading lesson…