Storage Devices

Duration: 14 min

This video lesson is available to enrolled students.

Return to /learn/DSSSB-TGT-COMPUTER-SCIENCE-COMPLETE-COURSE/computer-graphics-multimedia-mobile-computing/multimedia/multimedia-hardware-software/asset-storage-devices after enrolling

Inside: a video lesson and guided study material.

Module outline

  1. About Course: About the Course
  2. Section A: General Awareness: Polity, Physics, Biology, Chemistry, Static General Knowledge, History, Geography, Indian Economy, GK- Current Affairs, Evolution of Indian Banking (Banking & Financial Awareness), Environment
  3. Section A: General Intelligence & Reasoning ability: Series (Number and Letter Series) (Numerical Relations and Reasoning), Coding Decoding, Data Sufficiency, Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning), Analytical Reasoning (Counting Figures Reasoning), Blood Relations, Syllogisms, Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Seating Arrangements, Directions (Direction Test), Puzzle Solving (Puzzles), Calendar, Clock, Cubes & Dices, Selection Decision Table (Decision Making), Logical Sequence Of Words, Crypt Arithmetic, Venn Diagram, Data Arrangement, Inequality, Analogy, Ranking, Order and Sequence, TCS NQT Advanced Reasoning Ability
  4. Section A: Arithmetical & Numerical Ability: Ratio and Proportion (Ratios), Divisibility Rules, Data Interpretation, Mixture and Alligation, Permutation and Combination, Logarithm, Number System, HCF LCM, Sequence and Series (Series), Speed Time and Distance, Percentage, Average, Profit and Loss, Simple Interest and Compound Interest, Time and Work, Pipe and Cistern, Mensuration and Geometry, Powers and Exponents (Surds and Indices), Algebra, Probability, Mental Ability, Age Problems, Partnership, Statistics, Arithmetic, Speed Mathematics and Basic Mathematics, Miscellaneous
  5. Section A: English Language & Comprehension: Vocabulary, Subject Verb Agreement (Verb Noun Agreement), Adjectives, Tenses, Comprehension / Reading Comprehension / Unseen Passages (Critical Reasoning) (Paragraph Questions), Articles, Sentence Construction, Preposition, Direct and Indirect Speech, Sentence Completion (Fill in the blanks), Sentence Re-arrangements (Para Jumbles) (Narrative Sequencing), Modals, Active Passive Voice (Voice), Sentence Correction (Error Correction), Adverb, Conjunction, Cloze Test (Cloze Passage)
  6. Section A: Hindi Language & Comprehension: भाषा, लिपि, ध्वनि, वर्ण, अक्षर, स्वर, व्यंजन, मात्रा और संयुक्ताक्षर, वर्तनी, वर्ण-विन्यास, अनुस्वार, अनुनासिक, चंद्रबिंदु और ‘र’ के रूप, शब्द, पद और शब्द-भेद, संज्ञा और सर्वनाम, विशेषण और क्रिया, लिंग, वचन, पुरुष और कारक, काल, वाच्य, वाक्य और वाक्य-भेद, संधि, समास, विलोम शब्द, पर्यायवाची शब्द, सामान्य अशुद्धियाँ, अनेक शब्दों के लिए एक शब्द, मुहावरे और लोकोक्तियाँ, अपठित गद्यांश और अपठित पद्यांश, Multi-Topic Content (Cross-Concept Material), वर्णमाला
  7. Section B: Programming, Data Structures, OOP & Java: C Fundamentals, Control Flow, Functions, Arrays & Pointers, Storage Classes, Structures & Enums, DMA, Macros, Scoping & File Handling, Introduction to DS, Array, Stack, Queue, Linked List, Tree, Graphs, Hashing, Java, OOPS with C++, Language Design, Intro to Compilers, Visual Basics, Syntax Analysis: Bottom-Up, Object Oriented Technology
  8. Section B: Computer Networks, TCP/IP & Network Security: Introduction to CN, Data Communication, DLL: Flow Control, DLL: Access Control, DLL: Error Control, Data Link Layer - Ethernet, Net Layer: IPv4 & Proto, Net Layer: IP Addressing, Transport Layer Services, TL: Congestion & UDP, Application Layer, Hardware basics, Network Access Technologies, Network Security, Society, Law & Ethics, Mobile Computing, Net Layer:Routing Protocol, Cyber Safety and Security
  9. Section B: Teaching Methodology: Child Development, Concept of Pedagogy, Theories, Inclusive Education, Experiential Pedagogy, Assessment & Evaluation, Curriculum Framework & Reforms, National Education Policy (NEP) 2020, Psychology, Teaching-Learning Process, Personality Development, Teaching Methods & Strategies, Learning and Motivation, Learners & Learning Process, Factors Affecting Teaching, Methods of Teaching, Nature, Objectives & Characteristics of Teaching, Teaching-Learning Aids & ICT Integration, Classroom Management & Communication, Evaluation, Assessment & Measurement, Curriculum & School Environment, Inclusive Education & Special Needs, Professional Development & Ethics
  10. Section B: Digital Electronics / Boolean Logic: Digital Systems & Boolean Basics, Logic Gates & Hardware, Boolean Expression, Boolean Minimization, Combinational Circuit, Sequential Circuits, Number System, Number Representation, Analog-Digital Conversion
  11. Section B: Operating Systems & Linux: Introduction to OS, Process Management, CPU Scheduling, Process Synchronization, Threads & Process Creation, Deadlock, Memory Management, Virtual Memory, File Management, Disc Scheduling, Unix OS, Linux OS, Distributed Systems, Windows OS
  12. Section B: Data Base Management System: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, Normalization (1NF - BCNF), Decomposition Properties & 4NF, Relational Algebra, SQL, File Organization & Indexing, Transaction Management, Concurrency Control, Database Security & Authorization, Database Recovery, Data Warehousing & Mining
  13. Section B: Internet & Web Technologies: Website, Browser & Services, Internet Fundamentals, Web Design & Development, Protocols & Services, Web Publishing & Hosting, Server Side & Security, HTML Basics, CSS, Emerging Technologies, JavaScript-Basics, .Net Programming, Electronic Data Interchange and E-Commerce, XML
  14. Section B: Computer Fundamentals, IT Basics & Architecture: Basics of COA, Cache Memory Organization, Input Output Organisation, Register Transfer and Microoperations, Control Unit Design, Programming the Basic Computer, Terms & Abbreviations, MS Office Applications, Instr Formats & Modes, Floating Point Rep
  15. Section B: Python Language: Introduction to Python, Tokens, Variables, Data Types, I/O, Operators & Expressions, Control Flow & Looping, Collections & Strings, Functions & Modules, File Handling & Data Analysis
  16. Section B: Software Engineering: Fundamentals of Software Engineering, Software Requirements and Quality Assurance, Software Design, Estimation and Metrics, Software Testing, Software Maintenance and Configuration Management, extras, Fundamentals of Systems and Information Systems
  17. Section B: Design & Analysis of Algorithms: Algorithm Analysis, Time Complexity Analysis, Sorting Algorithms, Greedy Algorithms, Dynamic Programming, Minimum Spanning Trees, Shortest Path Algos, Advanced Algorithms
  18. Section B: Mathematics: Linear Algebra, Calculus, Trigonometry, Vectors, Set Theory, Functions, Relations, Propositional and Predicate Logic, Research Process Steps, Graph Theory
  19. Section B: Computer Graphics, Multimedia & Mobile Computing: Basics of Computer Graphics, 2-D Geometrical Transforms and Viewing, 3-D Object Representation, Geometric Transformations and Viewing, Multimedia
  20. Section B: Emerging Trends: Emerging Tech Trends, Knowledge Representation, Natural Language Processing
  21. DSSSB Previous Year Paper:
  22. Business Studies and Management: Business Communication, Business Organization and Management, Financial Accounting, Business Economics, Management Information System (MIS), Knowledge Management & New Economy
AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

This lecture introduces storage devices as hardware used to save, store, and retrieve multimedia data. The instructor defines the term, underlines key verbs such as save, store, and retrieve, and presents three primary examples: Hard Disk (HDD), SSD (Solid State Drive), and CD-ROM. Visual panels pair each device with icons for images, audio, videos, animations, and projects/software, while captions emphasize high storage capacity, high speed performance, and optical storage. The lesson then expands to additional media including DVD, pen drive (USB flash drive), memory card, and external hard drive, with on-screen capacities of 4.7 GB, 64 GB, 128 GB, and 2 TB respectively. Handwritten annotations distinguish optical disc variants such as CD-R, CD-RW, and DVD formats using read/write shorthand (R for read, W for write), noting single-write versus multiple-write behavior. The progression moves from definition and core examples to capacity comparisons and read/write capabilities, providing a structured overview of common multimedia storage media.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The opening slide titled "Storage Device" defines storage hardware as components that save, store, and retrieve multimedia data. Three numbered examples appear: Hard Disk (HDD), SSD (Solid State Drive), and CD-ROM, each with a short definition. Below the text, three panels pair an HDD photo, an SSD chip, and a CD-ROM disc with icon columns for Images, Audio, Videos, Animations, and Projects/Software. Bottom captions read "High Storage Capacity," "High Speed Performance," and "Optical Storage." The instructor underlines key terms like 'save, store,' and 'multimedia data' in the definition.

  2. 2:00 – 5:00 02:00-05:00

    The instructor circles the CD-ROM image to emphasize optical storage and writes "CD-R" with a pronunciation guide in the top right corner. Red handwritten notes are added progressively, starting with "CD-R" and arrows pointing to "CD-RW" and "CR-RAM." Across the frames the notes extend to read "CD-R → USER → WRITE" and then "→ R multiple," with a parallel line for CD-RW. The instructor highlights the words 'save', 'store', and 'retrieved' in the introductory paragraph, then highlights 'transferred' in the second sentence of the definition.

  3. 5:00 – 10:00 05:00-10:00

    The lesson shifts to comparing additional storage devices, including DVDs, pen drives, memory cards, and external hard drives. The instructor underlines the definition of a DVD as an optical storage disc with higher capacity than a CD and writes "4.7 GB" next to the DVD capacity label. On-screen text lists "Pen Drive (USB Flash Drive): 64 GB," "Memory Card: 128 GB," and "External Hard Drive: 2 TB." The instructor lists "DVD+R, DVD-RW, and DVD-ROM" on the right side and adds annotations for read/write capabilities of each disc type.

  4. 10:00 – 13:56 10:00-13:56

    The slide lists storage devices numbered 4 to 7: "DVD," "Pen Drive (USB Flash Drive)," "Memory Card," and "External Hard Drive." Four colored cards show a DVD disc labeled "4.7 GB," a USB pen drive labeled "64 GB," a SanDisk card labeled "128 GB," and an external drive labeled "2 TB." Red handwritten notes on the right read "W-Once," "DVD->R -> R multiple," and "DVD-RW -> W multiple." A second slide titled "Storage Device" defines storage devices and lists examples 1-3: "Hard Disk (HDD)," "SSD (Solid State Drive)," and "CD-ROM."

The lecture builds a layered understanding of multimedia storage by first establishing a clear definition and then categorizing devices by form factor, capacity, and access mode. The instructor uses underlining to anchor the core verbs—save, store, retrieve—and circles specific images (CD-ROM) to link abstract definitions to concrete hardware. Handwritten annotations serve as a recurring teaching tool: red notes in the top right corner decode optical disc acronyms (CD-R, CD-RW) into read/write shorthand, helping students distinguish single-write from rewritable media. The capacity progression (4.7 GB DVD → 64 GB pen drive → 128 GB memory card → 2 TB external hard drive) provides a tangible scale for comparing storage options. Central ideas include the functional definition of storage devices, the distinction between optical and non-optical media, and the read/write permissions of disc variants. Minor details such as pronunciation guides for CD-R and icon columns for multimedia types support retention but are secondary to the core classification framework. The lesson does not cover file systems, performance benchmarks beyond speed labels, or cloud storage, keeping the scope tightly focused on physical hardware examples.

Loading lesson…