Types of Computers

Duration: 4 min

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Module outline

  1. About the course: About the Course
  2. General Knowledge: Polity, Physics, Biology, State Wise GK, Chemistry, History, Geography, GK- Current Affairs, Indian Economy, Static General Knowledge, Environment, Evolution of Indian Banking (Banking & Financial Awareness)
  3. Mental Aptitude and Reasoning: Ratio and Proportion (Ratios), Divisibility Rules, Data Interpretation, Permutation and Combination, Number System, Sequence and Series (Series), Speed Time and Distance, Series (Number and Letter Series) (Numerical Relations and Reasoning), Coding Decoding, Data Sufficiency, Non Verbal Reasoning (Spatial Aptitude) (Spatial Reasoning) (Visual Reasoning), Vocabulary, Profit and Loss, Arithmetic, Mental Ability, Percentage, Algebra, Mensuration and Geometry, Age Problems, Clock, Calendar, Verbal Analogy (Word Based Analogy), Deductive and Inductive Reasoning (Logical Deduction and Induction) (Prepositional Reasoning), Analogy, Analytical Reasoning (Counting Figures Reasoning), Puzzle Solving (Puzzles), Selection Decision Table (Decision Making), Cubes & Dices, Blood Relations, Venn Diagram, Logical Sequence Of Words, Inequality, Directions (Direction Test), Data Arrangement, Facts, Inference and Judgements, Syllogisms, Seating Arrangements, Ranking, Order and Sequence
  4. CS | Computer Fundamentals: Basics of COA, Number System, Number Representation, C Fundamentals, Algorithm Analysis, Input Output Organisation
  5. CS | Database Management System: Basics of DBMS, ER Diagram, Relational Model & Functional Dependencies, Keys & Integrity Constraints, SQL
  6. CS | Workplace productivity Tools: MS Office Applications, Keyboard Shortcuts
  7. CS | Computer Networks: Introduction to CN, Data Communication, Data Link Layer - Ethernet, Net Layer: IPv4 & Proto, Net Layer: IP Addressing, Transport Layer Services, Application Layer, Hardware Basics, Network Security
  8. CS | The Internet: Website, Browser & Services, Internet Fundamentals, Web Design & Development, Web Publishing & Hosting, Server Side & Security, Emerging Technologies
  9. CS | Emerging Technologies: Artificial Intelligence, Emerging Tech Trends, Introduction to OS, Windows OS, Linux OS, Unix OS, JavaScript-Basics
  10. CS | Boolean algebra: Digital Systems & Boolean Basics, Boolean Expression, Boolean Minimization, Logic Gates & Hardware
  11. CS | Data Structures: Introduction to DS, Array, Stack, Queue
  12. CS | Cryptography: Society, Law & Ethics, 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
  13. UP Police Previous Year Papers:
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AI summary & chapters

AI Summary

An AI-generated summary of this video lecture.

The lecture systematically categorizes computers into two distinct types: General Purpose Computers and Dedicated Devices or Embedded Systems. The instructor begins by defining general-purpose computers through the lens of the Turing machine and the stored program architecture, emphasizing their ability to change functionality via software. He then contrasts this with embedded systems, describing them as specialized, hardwired devices designed for specific tasks like washing machines or medical equipment. The visual aids support these definitions with images of desktop PCs and various embedded devices.

Chapters

  1. 0:00 – 2:00 00:00-02:00

    The instructor introduces the first category, "General purpose computer," displayed prominently on the slide. He explains that this type of computer can perform "anything which can be theoretically done by a Turing machine". The text details the "stored program concept," where a "programmer writes a program store it in the memory and then computer executes it". The instructor actively underlines critical phrases to emphasize the dynamic nature of these machines, specifically highlighting "program can be changed and so does the functionality". He further clarifies that by changing the program, we can "accomplish different things using the same machine". The visual component features a standard desktop computer tower, monitor, keyboard, and mouse, serving as a concrete example of this versatile architecture.

  2. 2:00 – 3:36 02:00-03:36

    The presentation shifts to the second category, "Dedicated device or embedded system". The slide text explains that these are designed to perform a "specific task" and their functionality is "permanently fused in a chipset". The instructor underlines examples such as "washing machine, microwave etc." to illustrate common applications. He describes them as "simple computers designed to do Specific task" containing "small microprocessors inside them". A key distinction is made that these microprocessors are "hardwired and can not do everything, except specific task". The visual aids change to show an ATM machine, a medical ventilator, and robotic arms, demonstrating real-world examples of systems that perform dedicated functions rather than general computing.

The lecture effectively contrasts the flexibility of general-purpose computers with the specialization of embedded systems. General-purpose machines utilize stored program architecture, allowing software changes to alter functionality, making them suitable for a wide range of tasks. Conversely, embedded systems are hardwired for specific purposes, using simple microprocessors that cannot be easily reprogrammed for different functions. This fundamental difference dictates their application, with general-purpose computers handling diverse tasks and embedded systems optimizing for specific, dedicated roles in appliances and industrial machinery.

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