10 Questions
What is the primary function of an operating system?
To manage computer hardware resources and provide common services to computer programs
Which of the following is a type of front-end development?
Client-side development using HTML, CSS, JavaScript
What is the purpose of TCP/IP in computer networks?
To facilitate communication between devices in a network
What is the primary function of a database management system?
To design and implement databases
What is the characteristic of a high-level programming language?
It is easy to learn and use
What is the main difference between a relational database and a NoSQL database?
Relational databases use tables, while NoSQL databases use documents or key-value pairs
What is the primary function of the HTTP protocol in computer networks?
To transfer data over the internet
What is the main advantage of using a relational database management system?
It allows for structured and standardized data storage
What is the primary focus of back-end development in web development?
Server-side logic, database integration, and API connectivity
What is the main characteristic of object-oriented programming?
It organizes code into objects and classes
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
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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