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DBMS Basics: Introduction to Database Management System

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Data in DBMS:  Data is raw facts or unprocessed values. It can be in the form of numbers, characters, symbols, images, graphics, etc. Data is input given to the computer by the users. It is meaningless on its own. Example : 10061995 - Just a number (we don't know what it means). Information in DBMS: Processed data is called information. It is meaningful and useful. Information can be reused multiple times. Example: 10061995- If we know it's someone's date of birth, it becomes meaningful information. What is Database? A database is an organized collection of data that can be easily accessed, managed, and updated.  Key points: Database stores data in a structured form (like tables). It helps in quick retrieval and processing of data. Data in a database can be added, deleted, modified, and searched easily. Example: A school database may store: (Student names, Roll numbers, Marks and Addresses).  A library database stores(Book names, Author names, and Borrower's details). ...
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Computer Full Forms (A to Z)

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Computer Full Forms (A to Z)              'A' ADC          : Analog to Digital Converter ADSL        : Asymmetric Digital Subscriber Line AGP          : Accelerated Graphics Port A.I.            :- Artificial Intelligence ALGOL    : Algorithmic Language ALU          :-   Arithmetic Logic    Unit AMD          :-  Advanced Micro Devices  API            : Application Programming Interface ANSI         : American National Standards Institute APK          :  Android Package Kit ARPANET : - Advanced Research Project Agency Network.  ASCII         :- American Standard code for Information Interchange.  ATM           :- Automate...
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Basic Computer Fundamentals -Easy Notes for Beginners

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Introduction to Computer? The word Computer comes from the word Compute, which means to count or to calculate. A computer is an electronic device that takes input from the user, processes the data, and gives the desired result(output). It performs both mathematical and non-mathematical operations.                                       A computer follows the principle of GIGO (Garbage In, Garbage Out), which means if incorrect input is given, the output will also be incorrect.  Characteristics of Computer: Speed: Computers work very fast. They can perform millions or even billions of instructions in one second. Tasks that take hours for humans can be completed in seconds or milliseconds.             Example: Solving thousands of mathematical problem in a few seconds.  Accuracy : A computer is highly accurate. It gives correct results if the in...
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Machine Learning Notes for MCA Students

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Entrepreneur Skills Notes for Class 9 Students

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  Business: Business is an organized effort to provide goods and services to consumers in exchange for profit, while managing risks and contributing to economic growth.  Business ownership : It is the legal right and responsibility of an individual or group to operate a business, make decisions, and bear its profit or losses.  Types of Business Ownership  Sole Proprietorship: A Sole Proprietorship is a business owned and managed by a single person, who bears all profits, losses, and risks.   Ex: A local grocery shop, Freelance tutor or private teacher Partnership: A partnership is a type of business owned and managed by two or more person, who share the profits, losses , and responsibilities according to a mutual agreement.  Ex- Law Firms, Accounting firms, Small restaurants or retail shops run by multiple people Corporation: A Corporation is a type of business that is a separate legal entity from its owners(shareholder), with limited liability, and ...
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Digital Presentation Notes (LibreOffice Impress)-Class 9

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  Digital Presentation: Digital Presentation is a visual method of presenting information using digital tools such as computer, projectors, or presentation software. It includes slides , images , text, charts, audio, and videos to explain a topic clearly.  Some popular digital presentation applications are Libre Office Impress, Microsoft PowerPoint, Google Slides , etc. Characteristics of an Effective Presentation:   Relevant and Clear Content: The ideas should match the main topic and objective. Content must be meaningful and easy to understand. Attractive Opening: The Presentation should begin in an engaging way such as with a question, fact, short video. or example. Objectives should be clearly stated at the beginning. Proper Organization: The topics should be arranged in a logical sequence (Introduction- Body-Conclusion) to avoid confusion.  Short and Concise Points: Use bullet points instead of long paragraphs include suitable images, charts, and infographic...
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ICT-SKILLS Notes for Class 9

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Ch-3 (ICT-SKILLS)    What is Computer System? A Computer is an electronic machine that takes input from user, process the data and gives the desired result (output). It performs both mathematical and non-mathematical operations. Computer can be classified into two categories. 1. Hardware: Any physically components that we can touch, feel,& view are called hardware. Ex- Monitor, Printer, Motherboard, RAM, SSD, Pen drive, Mouse,etc. 2. Software : A Software is a set of programs or instructions that tells the computer what to do. Ex: MS-Word, Excel, PowerPoint, Scratch, etc. Software are two types: System Software: It is a type of program that is designed and managed to all hardware devices'- Operating System(Windows, 7,10,11) Application Software: It is a type of software designed to help users perform specific task. Ex: MS-Word, MS-Excel, Photoshop, CorelDRAW. Hardware categories four types   1. Input Device: Input devices are the devices that are used to enter dat...
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