How the Internet Works - A technical introduction to the Internet

From 46 C$ /h

A crash course on the fundamentals of computer networking and the Internet:
Short history
TCP/IP
The 4-layer model:
- The Link Layer: Ethernet, WiFi, etc.
- The Internet Layer: IP
- The Transport Layer: UDP and TCP
- The Application Layer
HTTP - URLs, methods, requests, responses...

Location

Online from Israel

Age

Children (7-12 years old)

Teenagers (13-17 years old)

Adults (18-64 years old)

Seniors (65+ years old)

Student level

Beginner

Duration

60 minutes

The class is taught in

English

Hebrew

Skills

Network infrastructure

Internet

Availability of a typical week

(GMT -04:00)

New York

Online via webcam

Mon

Tue

Wed

Thu

Fri

Sat

Sun

00-04

04-08

08-12

12-16

16-20

20-24

Check out my new class on the C programming language!

69 C$ /h

C is the most important programming language of the last 50 years. This course is aimed both at absolute beginners and at amateur programmers who wish to become proficient in C. I follow Kernighan and Ritchie's book but I elaborate on the fundamental concepts that underlie the development and runtime environments, e.g. how the compiler works, what the stack is, etc.

Philippe

5.0

(1)

About the course:
- This course offers a complete, accessible and attractive introduction to the principles of digital marketing. My goal is to teach you how to develop a digital marketing strategy and how to execute it.

About me:
- I work in marketing at one of the world's largest consumer goods companies (FMCG), which employs> 100,000 people in approximately 70 countries. I am based in Geneva, where I manage the global marketing of a brand of more than a billion dollars. Previously, I was Digital Marketing Manager for a brand of shampoos and hair dyes, as well as Consultant in Digital Market + ing. In my free time, I am a Marketing Assistant at Solvay Business School Brussels School of Economics & Management and I practice triathlon and sailing.

Mahmood

5.0

(1)

Technology is advancing at a rapid pace, and we rely more and more on computers for everything from cooking to organizing our taxes. An understanding of computer basics is compulsory nowadays.

The goal of this course is to give you a solid foundation on basic IT and computer knowledge. Once you understood these basics, you will have a clear understanding on which to build your future knowledge of an skill with computers and the Internet.

COURSE OUTLINES:

KNOWING COMPUTER
- Introduction and objectives
- What is Computer?
- Components of Computer system
- Concept of Hardware and Software
- Concept of computing, data and information
- Applications of IECT
- Bringing computer to life
OPERATING COMPUTER USING GUI BASED OPERATING SYSTEM
- Introduction and objectives
- Basics of Operating System
- The User Interface
- Operating System Simple Setting
- File and Directory Management
UNDERSTANDING WORD PROCESSING
- Introduction and objectives
- Word processing Basics
- Opening and closing Documents
- Text Creation and manipulation
- Formatting the Text
- Table manipulation
USING SPREAD SHEET
- Introduction and objectives
- Elements of Electronic Spread sheet
- Manipulation of Cells
- Formulas and Function
INTRODUCTION TO INTERNET, WWW AND WEB BROWSERS
- Introduction and objectives
- Basic of Computer Networks
- Internet
- World Wide Web (WWW)
- Web Browsing Softwares
- Search Engines
- Understanding URL
- Surfing the web
COMMUNICATIONS AND COLLABORATION
- Introduction and objectives
- Basics of E-mail
- Using E-mails
- Document collaboration
- Instant Messaging and Collaboration
MAKING SMALL PRESENTATIONS
- Introduction and objectives
- Basics of Making small Presentations
- Creation of presentation
- Preparation of slides
- Presentation of slides
- Slide show
FINANCIAL LITERACY FOR BANKING SCHEME AND APPLICATIONS
- Introduction and objectives
- Why Savings are needed?
- Drawbacks of keeping cash at home
- Why Bank is needed?
- Banking products
- Banking Service Delivery Channels
- Various Schemes
- Bank on your mobile
- Insurance

5.0

(1)

Engineer in engineering sciences option electrical engineering
Senior professor of engineering sciences

SKILLS
IS engineering sciences
Embedded system (microcontrollers, z80 microprocessors, Motorola, ARM), Real-time system, network concept (OSI, TCP/IP), design of systems and electronic cards (analog, digital, power supply), signal processing, communication protocols ( SPI, I2C, CAN BUS, UART...), telecommunications.

Technical skills :
Languages: C / C ++, JAVA, VHDL / VERILOG, Python, Assembler.
Professional software:
MATLAB, SIS + PSIM + PSpice, QUARTUS, IDE68, Mikro C, Xilinix ISE, Labview, CoIDE.
Technologies:
Siemens PLC, Allen bradeley, STM32, FPGA, TIA Portal, STEP7, RSLogix

 Electrical engineering: Electric motors, Transformers
 Renewable energies: study of the solar pumping installation and the wind turbine installation.
 Electronics: analog, digital, power electronics, system electronics and instrumentation
biomedical.
 Networks and telecommunications.
 Industrial IT and programmable logic controllers.
 Automatic: modeling, identification and control of systems.
 Mechatronics.
 MATLAB
• Noise and vibration of asynchronous motors
• Speed variator
• Study and implementation of LV / MV standards
• Electrical accreditation: NF C18-510 standard
• NF C 15-100 electrical installations
• Management of electrical energy in networks (Continuous Power Flow)

Luana

5.0

(1)

Having trouble understanding how social media works? Do you need to highlight your business, your creations, your travels on social networks?
I am a social media expert and I can support you in your launch.
If you've already started, congratulations! I'm here to help you find direction, strategize and take your social media to the next level.
Social networks are now an integral part of our daily lives and all companies, brands and others must be up to date to perform. I would be happy to help you in this process and teach you how to succeed in this digital world where everything is possible.

Christaul

5.0

(1)

Classes are face-to-face at the student's home or via webcam. You will learn computer science according to your level and what you want to learn. I am a computer science student so quite versatile. As far as programming is concerned, the possible languages are: HTML, CSS, PHP, Python, C and C++, for the network, introduction to software such as Cisco packet tracer, GNS3, vmware, virtual box. Introductory computer courses, even rudimentary ones, are possible. You will learn in a jovial and encouraging atmosphere, I have a lot of experience in the field of teaching and I am comfortable with children

Farouk

5.0

(1)

Are you using ChatGPT, Gemini, or other AIs, but feel like you're only scratching the surface of their potential? Are your results often generic, inaccurate, or disappointing? It's time to move from a simple user to a true AI pilot. 🤖✨

This 4-hour intensive course, "Prompt Engineering: Mastering the Art of Communicating with AI," is designed to give you the keys to effective and powerful communication with language models (LLM).

> 🧠 “If I had an hour to solve a problem, I would spend 55 minutes defining the question.”

This is the essence of Prompt Engineering: the art of asking the right question to get the best answer. 🎯

🧰 Exclusive methods taught

During this practical and immersive training, you will discover two structured methods to transform your ideas into tangible results:

🔹 The ACTIF method
👉 A foolproof approach to building powerful text prompts. You'll learn how to define:

Action
Context
Tone
Identify
Format

...in order to obtain clear, targeted and impactful content, analyses or strategies. 📄💡

🔹 The IMAGES method
👉 Your visual passport to create high-value graphic prompts. Based on 6 pillars:

Intention
Pattern
Atmosphere
Grain
Aesthetic
Style

...it will allow you to generate images that faithfully reflect your creative vision. 🖼️🎨

👥 Who is this course for?

✅ Entrepreneurs and marketers who want to create targeted content and relevant strategies.
✅ Content creators, writers, designers who want to boost their creativity and productivity.
✅ Professionals from all sectors wishing to integrate AI into their daily lives (automation, analysis, resolution).
✅ Students and curious people wanting to master a strategic skill for the future of work. 🧑‍💼📈

🧠 What you will master in 4 hours:

✔️ Understand the functioning and capabilities of LLMs (ChatGPT, Gemini, Claude, etc.) 🤓
✔️ Structure impactful text requests with the ACTIF method 📝
✔️ Create powerful visual prompts with the IMAGES method 🖌️
✔️ Move from simple interaction to intelligent co-creation with AI 🧩
✔️ Put it into practice with concrete exercises, dedicated tools, and realistic use cases 🛠️📊

🎓 Join us!

Stop being subjected to AI... and start leading it.
🎯 Master the art of dialogue with artificial intelligence,
💼 and unleash their full potential to serve your projects!

Cedric

5.0

(1)

COMPUTER NETWORKS COURSE:

The Computer Networks course aims to introduce you to the principles, technologies, and tools that enable communication between computers and connected devices. You will learn how data flows across a network, how local area networks (LANs) and wide area networks (WANs) are structured, and the roles of the main equipment (switches, routers, access points, etc.).
By the end of this course, you will be able to:
- Understand how TCP/IP networks and IP addresses work.
- Configure a simple network and troubleshoot connectivity issues.
- Identify the main communication protocols (HTTP, DNS, DHCP, etc.).
- Implement basic network security concepts.

This course combines theory and practice, allowing you to develop concrete skills in network administration and troubleshooting.

WINDOWS SERVER COURSE

The Windows Server course aims to train you in the installation, configuration, and management of a Microsoft server operating system. You will learn how to create and administer a domain, manage users, groups, resource shares, and network security.

By the end of this course, you will be able to:

- Install and configure Windows Server.
- Manage user and group accounts with Active Directory.
- Setting up DNS and DHCP servers
- Implement security strategies (GPO).
- Administration of a multi-domain environment
- Administer file and printer sharing.
- Monitor and troubleshoot network services.

This course combines practical exercises and theoretical concepts to prepare you to effectively administer a professional Windows environment.

LINUX COURSE:

The Linux course aims to introduce you to the use and administration of free operating systems. You will learn to master basic commands, user, file, service and permission management, as well as the installation and configuration of a Linux system.

By the end of this course, you will be able to:
- Use the terminal and Linux commands effectively.
- Manage users, groups, rights and permissions.
- Install and configure network services (SSH, Apache, etc.).
- Automate tasks with shell scripts.
- Administer and troubleshoot a Linux system.

This course combines intensive practice and solid foundations to make you a competent Linux administrator.

Javi

5.0

(1)

I solve any problem related to IT systems, networks, and cybersecurity. I offer online classes. I resolve any issue remotely. Classes are available for vocational students, engineering students, general IT support, and anyone who wants to learn for any reason!

Christopher

5.0

(1)

Have you just bought a new computer or do you finally want to feel comfortable with the one you have? This course is for you!
Designed specifically for beginners and seniors, this course guides you step by step in discovering your Mac or PC. No technical jargon, no judgment – just clear explanations and plenty of patience.
In the program :

Navigate your computer with confidence (desktop, files, folders)
Using the Internet and emails safely
Manage your photos and documents
Discover office tools (Pages/Numbers or Word/Excel)
Communicate with your loved ones via FaceTime or WhatsApp
Back up your data so you don't lose anything
Introduction to AI Assistants: Artificial intelligence (ChatGPT, etc.) to simplify your life

My approach: I adapt to your pace and needs. Every question is welcome, and we progress together until you feel independent.

See you soon, Chris

Sami

5.0

(1)

A computer science engineer with a Master's degree (Bac+5), specializing in programming and algorithms, I have been a private tutor since 2023. I support middle school, high school, and post-secondary students with a clear, supportive, and structured teaching approach. My goal is to strengthen logic, methodology, and confidence so that each student can make lasting progress and achieve their academic goals.

Passionate about teaching and sharing computer science knowledge, I also volunteer to help young people develop their logic, autonomy and digital skills in a caring and motivating environment.

I support high school and post-baccalaureate students according to their field of study:

- NSI (general high school): Python, algorithms, web basics (HTML, CSS, JavaScript) and databases (SQL)

- STI2D – SIN option: Python, PHP, C (Arduino), technical projects and embedded systems

- Vocational Baccalaureate (Digital Systems): networks, systems and applied programming

- BTS in Computer Science: structured and object-oriented programming, professional projects and tools

My approach is based on listening, patience, and teaching methods adapted to each individual's profile, in order to foster success, motivation, and a desire to learn.

Sylvain

5.0

(1)

Artificial intelligence is revolutionary, but it can become a trap if used simply as an "answer generator." Parents, are you worried that your child will take the easy way out or lose their critical thinking skills? High school and university students, do you want to become more efficient while still taking pride in the originality of your work?

I will guide you in transforming AI into a true personal tutor. My goal: for the tool to serve your thinking, without ever replacing it.

What I wish to offer you (my methodology):

AI shouldn't write for you; it should help you think better. My approach focuses on:
- AI as a research partner: learning to "prompt" (query AI) to obtain relevant lines of thought and working structures.
- Critical thinking & ethics: Learn to verify sources, detect AI errors and ensure the academic honesty of your submissions.
- Methodological efficiency: Use the tool to synthesize dense courses, organize revisions or overcome writer's block.
- Student autonomy: Understanding how the tool works so as not to be dependent on it, but to become its pilot.

Specific examples of what we can accomplish together:

Dissertation/Thesis Methodology: Structure a coherent plan and identify key arguments without AI writing for you.

Exam preparation & Grand Oral: using AI to practice speaking, simulate examiner questions or simplify complex concepts (philosophy, economics, science).

Reading aid: learn to extract the essential information from a long or complex text to better understand it.

Organization: create personalized revision schedules and optimize your work time.

Elias

5.0

(1)

This course introduces students to the essential role of data annotation in artificial intelligence and machine learning. Learners will gain a clear understanding of how raw data is transformed into structured, labeled datasets that enable AI systems to learn, interpret, and make accurate predictions.

Through guided instruction and practical examples, the class explores different types of annotation, including text, image, audio, and video labeling. Students will learn industry-relevant techniques, annotation standards, and quality control practices that ensure consistency and reliability in real-world AI projects.

The course emphasizes hands-on learning, allowing participants to practice annotation tasks and understand how their work directly impacts the performance of AI models. By the end of the class, students will have the foundational knowledge and practical skills needed to begin working on data annotation tasks or pursue opportunities in the AI and data industry.

Aymane

5.0

(1)

Programming courses for beginners and intermediate learners.
Learning computer logic, the basics of coding and putting it into practice with exercises and mini-projects.
Personalized support according to the student's level.
Opportunity to move towards web or mobile development with a concrete and practical approach.

Daniel

5.0

(1)

The zero-click search era is no longer a future prediction—it is our current reality. With over 60% of web searches ending without a single click, traditional SEO strategies, keyword rankings, and legacy traffic funnels are rapidly becoming obsolete. In this AI-mediated world, discovery happens inside the "dark funnel" of large language models, where platforms like ChatGPT, Gemini, Perplexity, and Google AI Overviews act as the primary interface for your audience.

Your new digital currency is no longer the website click; it is the AI citation.

This masterclass is designed for executives, digital transformation leaders, and marketing strategists who want to pivot from obsolete traffic metrics to AI visibility. Participants will learn how generative engines parse, prioritize, and select the brands they trust. We will break down real data from millions of AI responses to uncover the exact profile of content these models prefer—focusing on open, structured knowledge hubs, informative comparative assets, and definitive educational content.

Move beyond fighting for vanishing organic traffic. Learn how to optimize your digital infrastructure for AI extraction, position your brand as an authoritative industry source, and build lasting consumer trust in a world where the machine is the interface.

Djouada

5.0

(1)

As an Information Systems Security Engineer (USTHB) with solid field experience and teaching experience (secondary, higher and vocational training), I offer personalized support in general IT, networks and cybersecurity.

My goal is to tailor each session to the student's actual needs, whether it's laying solid foundations, passing exams, or developing practical skills for the professional world.

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📚 PROGRAM & PROPOSED THEMES:

1. Introduction & Basics of Computer Science (Beginner):
• Introduction to computer tools and familiarization with the Windows/Linux environment
• Introduction to algorithmic concepts and programming logic

2. Networks & Information Systems (Intermediate & Advanced):
• Issues and architecture of information systems
• Network protocols, configuration and simulation (Cisco Packet Tracer, Wireshark)
• System administration and virtualization (Windows Server, Linux RedHat/CentOS, VMware, VirtualBox)

3. Computer Awareness & Security (Intermediate & Advanced):
• Fundamental principles of cybersecurity and best practices
• Discovery and securing of Active Directory directories
• Traffic analysis and perimeter security

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💡 METHODOLOGY:

• Concrete pedagogical approach combining theoretical courses and practical work (virtual labs).
• Course materials and summary sheets provided.
• Pace adapted to the learner's objectives (regular support, preparation for exams or specific projects).