How the Internet Works - A technical introduction to the Internet

From 23.41 £ /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 -05:00)

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!

35.12 £ /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.

Mahmood

4.53

(15)

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

Casper

4.53

(15)

Answer to the many questions related to information technology.
Want to know how something works, or how you can prevent something.
You have come to the right place, I can teach you in all areas of information technology.
Below you see several questions to which I can give you a clear and straightforward answer. I can explain this to you at any level and we can go deep where you want it. Is your question not listed? Let me know. There are simply too many questions to write here.

How does the internet work?
How does a computer network work?
What is a DHCP server and how does DNS work?

How do I keep my identity hidden online?
What are cookies?
What does my computer store?
How does the Wehkamp site know that I like those pants?

How does Excel work? and Word? and Powerpoint?
What is a router?
How does WiFi work and can my neighbor on my network?
Do I have a strong password?
What is hacking?
How does a computer virus and ransomware work?
How does a firewall work?
What is blockchain?

I teach at different levels, if you are interested you can always send an email without obligation with your question. We can then make a personal study plan.
My specialization is internet security, but I got there by gaining knowledge within all facets of information technology. From system administration, network management and explaining the various functions in Windows or IOS to repairing the hardware of a PC.
I studied business informatics at the Hogeschool van Amsterdam. Nowadays I live on Curacao, but I can give great lessons via webcam. And through the possible use of team viewer or G + I can show on your computer how to configure a router, for example. Nothing is impossible ;-)

Jose

4.53

(15)

Eager to learn Linux and infrastructure? Then do no hesitate in contacting me. We can start from the foundations of all these extremely important disciplines, if you consider you have knowledge on system administration is not a problem, we can study Security in Linux and Networks, virtualization and containers.

4.53

(15)

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)

Xavier

4.53

(15)

Basic I.T. (internet) management of mobile devices and desktop lessons on thorough cleanings, virus removal, upgrades, repair, and management. I can be available for courses at your convenience just message me the time and course you're interested in learning. If you can provide me with advance notice then I will be available at your leisure. If you have any questions about specifics please feel free to ask.

Luana

4.53

(15)

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.

Alicha

4.53

(15)

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

Riadh

4.53

(15)

The course will cover the following points:
- Office automation (Word, Excel)
- Network administration
- CCNA Training (This program provides the foundation for IT professionals who are familiar with the
Cisco networks and operating systems)
- Teaching network courses (LAN, MAN, WAN, TCP/IP protocols)
- Practical work (Packet tracer)
- Some notions on computer security

Karim

4.53

(15)

Do you want to level up in programming, networking, ethical hacking, or IT governance?

I’m here to guide you especially if you’re just starting out and need a clear roadmap to grow and find your place in the IT field. I’ve built a practical learning path for you, with free access to my own platform, where you’ll find well-structured resources to support you at every step.

What’s included:

- Hands-on slides, explained together
- Quizzes to test your knowledge
- Technical projects with my personal guidance

And everything you need to prepare for recognized certifications in the field.

Farouk

4.53

(15)

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!

Fatma

4.53

(15)

The CCNA (Cisco Certified Network Associate) certification provides you with a solid understanding of network infrastructure and software. This Cisco certification covers a wide range of topics and provides a solid foundation in networking and security fundamentals, network access, IP connectivity, IP services, and automation.

Jose

4.53

(15)

In my network planning and administration classes, you'll learn how to design, configure, and maintain computer networks that enable communication between devices and services. Throughout the course, you'll cover everything from the basics of network topologies and IP addressing to the configuration of routers, switches, and servers.

You'll also learn to identify and troubleshoot common problems, optimize performance, and implement best security practices. The goal is for you to acquire the skills necessary to confidently manage networks in both home and professional environments.

Javi

4.53

(15)

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

4.53

(15)

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

4.53

(15)

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.