Operating Systems Fundamentals
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Questions and Answers

What is the primary function of an operating system?

  • To manage computer hardware resources and provide common services to computer programs (correct)
  • To connect devices in a network
  • To design and implement databases
  • To provide a platform for developing web applications
  • Which of the following is a type of front-end development?

  • Database management using relational databases
  • Network topology design using bus and star topologies
  • Server-side development using languages like Ruby, Python, PHP
  • Client-side development using HTML, CSS, JavaScript (correct)
  • What is the purpose of TCP/IP in computer networks?

  • To design and implement databases
  • To provide a platform for developing web applications
  • To manage computer hardware resources
  • To facilitate communication between devices in a network (correct)
  • What is the primary function of a database management system?

    <p>To design and implement databases</p> Signup and view all the answers

    What is the characteristic of a high-level programming language?

    <p>It is easy to learn and use</p> Signup and view all the answers

    What is the main difference between a relational database and a NoSQL database?

    <p>Relational databases use tables, while NoSQL databases use documents or key-value pairs</p> Signup and view all the answers

    What is the primary function of the HTTP protocol in computer networks?

    <p>To transfer data over the internet</p> Signup and view all the answers

    What is the main advantage of using a relational database management system?

    <p>It allows for structured and standardized data storage</p> Signup and view all the answers

    What is the primary focus of back-end development in web development?

    <p>Server-side logic, database integration, and API connectivity</p> Signup and view all the answers

    What is the main characteristic of object-oriented programming?

    <p>It organizes code into objects and classes</p> Signup and view all the answers

    Study Notes

    Operating Systems

    • Definition: A software that manages computer hardware resources and provides common services to computer programs
    • Types:
      • Single-user, single-tasking (e.g., MS-DOS)
      • Multi-user, single-tasking (e.g., Unix)
      • Multi-user, multi-tasking (e.g., Windows, macOS)
    • Functions:
      • Process management
      • Memory management
      • File system management
      • I/O management
      • Security and protection
    • Examples:
      • Windows
      • macOS
      • Linux
      • Unix

    Web Development

    • Definition: The process of building and maintaining websites and web applications
    • Front-end development:
      • Client-side development using HTML, CSS, JavaScript
      • Focus on user interface and user experience
    • Back-end development:
      • Server-side development using languages like Ruby, Python, PHP
      • Focus on server-side logic, database integration, and API connectivity
    • Frameworks and libraries:
      • Front-end: React, Angular, Vue.js
      • Back-end: Ruby on Rails, Django, Flask
    • Databases:
      • Relational databases (e.g., MySQL)
      • NoSQL databases (e.g., MongoDB)

    Computer Networks

    • Definition: A group of interconnected devices that communicate with each other
    • Types:
      • LAN (Local Area Network)
      • WAN (Wide Area Network)
      • MAN (Metropolitan Area Network)
      • WLAN (Wireless Local Area Network)
    • Network topologies:
      • Bus
      • Star
      • Ring
      • Mesh
    • Network protocols:
      • TCP/IP (Transmission Control Protocol/Internet Protocol)
      • HTTP (Hypertext Transfer Protocol)
      • FTP (File Transfer Protocol)
      • DNS (Domain Name System)

    Database Management

    • Definition: The process of designing, implementing, and managing databases
    • Database types:
      • Relational databases (e.g., MySQL)
      • NoSQL databases (e.g., MongoDB)
      • Object-oriented databases
      • Time-series databases
    • Database management systems:
      • DBMS (Database Management System)
      • RDBMS (Relational Database Management System)
    • Database design:
      • Database normalization
      • Entity-relationship diagrams
      • Data modeling

    Programming Languages

    • Definition: A set of instructions used to write software programs
    • Types:
      • High-level languages (e.g., Python, Java)
      • Low-level languages (e.g., Assembly, C)
      • Scripting languages (e.g., JavaScript, Ruby)
      • Functional programming languages (e.g., Haskell, Lisp)
    • Programming paradigms:
      • Imperative programming
      • Object-oriented programming
      • Functional programming
      • Declarative programming
    • Examples:
      • Python
      • Java
      • C++
      • JavaScript

    Operating Systems

    • Manage computer hardware resources and provide common services to computer programs
    • Types: Single-user, single-tasking, Multi-user, single-tasking, Multi-user, multi-tasking
    • Process management: Creating, running, and terminating processes
    • Memory management: Allocating and deallocating memory for programs
    • File system management: Providing access to files and directories
    • I/O management: Managing input/output operations between devices and programs
    • Security and protection: Controlling access to computer resources
    • Examples: Windows, macOS, Linux, Unix

    Web Development

    • Building and maintaining websites and web applications
    • Front-end development: Client-side development using HTML, CSS, JavaScript
    • Focus on user interface and user experience
    • Back-end development: Server-side development using languages like Ruby, Python, PHP
    • Focus on server-side logic, database integration, and API connectivity
    • Frameworks and libraries: React, Angular, Vue.js (Front-end), Ruby on Rails, Django, Flask (Back-end)
    • Databases: Relational databases (e.g., MySQL), NoSQL databases (e.g., MongoDB)

    Computer Networks

    • Group of interconnected devices that communicate with each other
    • Types: LAN (Local Area Network), WAN (Wide Area Network), MAN (Metropolitan Area Network), WLAN (Wireless Local Area Network)
    • Network topologies: Bus, Star, Ring, Mesh
    • Network protocols: TCP/IP (Transmission Control Protocol/Internet Protocol), HTTP (Hypertext Transfer Protocol), FTP (File Transfer Protocol), DNS (Domain Name System)
    • Communication: Devices exchange data through protocols

    Database Management

    • Designing, implementing, and managing databases
    • Database types: Relational databases (e.g., MySQL), NoSQL databases (e.g., MongoDB), Object-oriented databases, Time-series databases
    • Database management systems: DBMS (Database Management System), RDBMS (Relational Database Management System)
    • Database design: Database normalization, Entity-relationship diagrams, Data modeling
    • Data storage and retrieval: Organizing and accessing data efficiently

    Programming Languages

    • Set of instructions used to write software programs
    • Types: High-level languages (e.g., Python, Java), Low-level languages (e.g., Assembly, C), Scripting languages (e.g., JavaScript, Ruby), Functional programming languages (e.g., Haskell, Lisp)
    • Programming paradigms: Imperative programming, Object-oriented programming, Functional programming, Declarative programming
    • Examples: Python, Java, C++, JavaScript

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    Test your knowledge of operating systems, including types, functions, and examples of popular OSes such as Windows, macOS, and Linux. Covering process management, memory management, and more.

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