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Computer science, Internet security and computer skills

From 26 £ /h

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 ;-)

Extra information

Prepare yourself.

Location

Online from Curacao

About Me

I am a 'tech junkie' I would love to read about the latest technologies all day and to pass this on to others while automating everything with a Raspberry PI.
Of course that's not possible, but I'm getting close. If I can make someone enthusiastic and convey what I have learned to you then my day is a success.
Enthusiasm is contagious, and a better infection than the virus that keeps us all over the world. Let me infect you with the most beautiful profession in the world, you will not regret it.

Education

HBO graduated business informatics
Several certificates from Microsoft and the main courses listed below:
Network security
Prince2 (Practitioner and Foundation)
VMWare
Palo Alto
CCNA
CISSP
Blockchain basics

Experience / Qualifications

I have 20 years of experience in the various fields of computer science.
From system management to internet security.

Age

Teenagers (13-17 years old)

Adults (18-64 years old)

Seniors (65+ years old)

Student level

Beginner

Intermediate

Advanced

Duration

60 minutes

90 minutes

120 minutes

The class is taught in

Dutch

English

Skills

Internet

Information systems

Computer basics

Reviews

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

Izhar

5.0

(3)

Talking about Computers, it is a very interesting subject. As technology is advancing at a rapid pace, we rely more and more on computers for everything from playing games to organizing our taxes. An understanding of computer basics is compulsory nowadays.
I have a Master's Degree in Computer Science and this course is designed according to your level of understanding of computers. We'll be practically doing things on Computers and see the things happening over there.

Starting from Computer basics which includes computer knowledge of Operating system, hardware-software components, internet, World Wide Web(WWW), different web browsers, and other basic functionalities of a computer system. Then moving on to basic knowledge of word processing, spreadsheets and preparing professional presentations (Ms. Word, Ms. Excel, Ms. Powerpoint) and creating simple web pages through HTML. Apart from this if you wish, we can move to the advanced level of each of them. I'll be teaching you in a very simple way so that you grab the concepts easily.
Let's start and do something innovative.

Varvara

5.0

(3)

Improve your French by following our online French courses. I teach courses and help organize foreign companies in matters of organization and fixed obligations such as monthly expenses and scheduling client appointments.

Gaëlle

5.0

(3)

While adults are still debating whether kids should use AI, they are already using it.
The question isn't "should they?" it's "how do we do it intelligently?"

In this course, your child will discover:
✓ What AI actually is: not magic, not mystery. How machines think, what they can do, what they can't
✓ How ChatGPT really works: not just "ask a question and get an answer," but why it responds that way, where it fails, when to trust it
✓ What LLMs are (Large Language Models): in language they understand, not tech jargon
✓ Create with AI: custom avatars, interactive stories, real projects using real tools
✓ Think critically about AI: Bias, privacy, creativity. What does AI do better than humans? What can't it do?
✓ Real-world applications: How AI transforms medicine, education, art, gaming, everyday life

Why this is different:
Most AI courses for kids teach "here's the tool, use it." I teach how to think about AI.
Your child will learn to see AI not as black magic or a solution to everything, but as a powerful tool with real limits.
And, more importantly: that they can control how they use it.

What they take home:
Real projects they created (custom avatar, interactive app, analysis of a real AI case study). A genuine understanding of how it works. And the ability to use AI responsibly and creatively.

Format: Online | 60–90 min sessions | Flexible, adapted to their age and pace

For curious kids asking "How does ChatGPT actually know things?"

Anas

5.0

(3)

_*IMPORTANT*_
It will depend on how fast you learn, but you should allow at least 3 hours for a quick start.

Here is the proposed program:

I) What is SAP?
* Introduction to SAP (ECC)
* The main functions of SAP
* SAP architecture
* Structure and organizational data
* Overview of SAP functional modules (FI, SD, MM, PP etc.)

II) SAP : Getting Started
* Navigating the SAP system
* Logging in and out
* Presentation of the home screen
* Organization of SAP screen (fields, tabs, tables...)
* Use of the data search functions
* How to navigate in SAP
* Transaction system
* Examples of flows

Abdelhamid

5.0

(3)

Need to strengthen your IT skills? Whether you are in a Bachelor's degree, a Master's degree, or a student at an engineering school, take advantage of the expertise of a doctor in IT for tailor-made training.
Adapted to your level and your objectives: Whether you are discovering a subject or aiming for excellence, my courses adjust to your needs.
Interactive and practical lessons: Practice directly with relevant exercises and projects.
Deep Learning: From advanced algorithms to system architecture and organization concepts, master the essential basics and go beyond.
With me you will not only learn computer science – you will understand it and apply it successfully.

Patrick

5.0

(3)

Do you need professional support for your quantitative data analysis?
I offer you a personalized service, adapted to your academic or professional needs.

Whether you are a student, researcher, consultant or professional, I put my expertise at your disposal to help you:
Prepare and organize your databases,
Perform reliable statistical analyses with R, Stata, SPSS...
Interpret your results rigorously,
Present your work in the form of clear reports, graphics and publications.
Each project is handled with rigor, pedagogy, and confidentiality. You benefit from tailored support, whether for a professional assignment, a dissertation, a thesis, or a publication.

For those who wish to train in parallel, I have also designed a complete course to learn how to explore, manipulate and analyze your data independently.

Mohamed

5.0

(3)

This fun and interactive course introduces kids and teens to the fundamentals of coding using Scratch, a visual programming language developed by MIT. Students will learn to create games, animations, and interactive stories while developing problem-solving, logical thinking, and creativity skills—all in a playful, drag-and-drop environment!
Who Should Join?
✔ Kids & teens curious about coding and game design
✔ Young learners who enjoy storytelling, art, or technology
✔ Future coders looking for a fun introduction to programming

Farouk

5.0

(3)

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!

Raouf

5.0

(3)

Objective: To understand AI without fear, to use it to simplify one's life, to know how to identify digital traps, and to use Word, Excel, etc. without difficulty.

1: Demystifying AI (What exactly is it?)
AI is not a movie robot: Difference between fiction and reality.

How it works (simply): The image of the "giant library": AI has read billions of books and uses them to predict the continuation of a sentence or create an image.

Where is it already present? Spell checkers, Netflix/YouTube suggestions, GPS, and voice assistants (Siri/Alexa).

2: Using AI to make life easier
Conversing with AI (ChatGPT, Claude, Gemini):

Ask him to write an administrative email or a complex letter.

Summarize a long newspaper article or document.

Plan a travel itinerary or find recipe ideas with what's left in the fridge.

AI for creativity and memory:

Generate images to illustrate a birthday card (Midjourney, DALL-E).

Using AI to restore or colorize old family photos.

3: Learning to "talk" to AI (The Art of the Prompt)
The context method: Why "Give me a cake recipe" is less effective than "I am allergic to gluten and I am hosting 4 people, give me a simple chocolate cake recipe".

The expert's role: Learning to tell AI "Act like a travel guide" or "Act like an expert gardener".

4: Precautions and Critical Thinking (The Survival Guide)
"Hallucinations": Understand that AI can make false claims with complete certainty (never take medical or legal advice from AI without verification).

Privacy protection:

Never give sensitive data (social security number, passwords, bank details) to an AI.

Knowing that everything we write to the AI is potentially used to train it.

Spotting "Deepfakes":

How to recognize a doctored image or video (details on the hands, strange reflections, slightly metallic voice).

Verify the information: the golden rule of cross-referencing sources.

5: Ethics and Impacts (To go further)
Copyright: Who owns an image created by AI?

The environmental impact: The water and energy consumption of AI servers.

The future: Will AI replace us or assist us?

Ali

5.0

(3)

I offer one-to-one Robotics and Electronics tuition for kids, teenagers, GCSE, A-Level, and IB students who want to learn how robots, sensors, and microcontrollers actually work. Lessons are available online or in person around Birmingham.

What I cover:

Arduino programming and projects
Basic electronics: circuits, sensors, motors, LEDs
Introduction to robotics and automation
STEM coursework and school project support
GCSE, A-Level, and IB Design & Technology / Computing projects
Fun beginner builds: line-following robots, obstacle-avoiding cars, weather stations, smart home gadgets

How I teach:
I keep lessons hands-on and project-based, because kids learn best when they're building something they actually care about. We'll start with the basics — wiring up an LED, making a buzzer beep — and build up to fully working robots and gadgets. I'm patient with mistakes (they're part of the fun), and I explain everything in clear, simple language without dumbing it down.
This is perfect for parents whose children love technology, want to get ahead in STEM, or have a school project they need help with.

Send me a message and we can arrange a free 15-minute introductory chat to talk about your child's interests. No pressure, no commitment.

Daniel

5.0

(3)

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.

Asif

5.0

(3)

Learn the fastest and most practical way to build your own complete mobile application using modern Vibe Coding techniques. In this class, you will discover how to transform your ideas into fully functional Android and iOS apps without getting overwhelmed by complex programming concepts. From planning and designing your app to building features, integrating AI tools, and publishing your application, every step is explained in a simple and beginner-friendly way. Whether you are a student, entrepreneur, freelancer, or aspiring developer, this course will help you create real-world mobile apps faster, smarter, and with greater confidence.

Djouada

5.0

(3)

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).

Rehana

5.0

(3)

My classes are interactive, engaging, and tailored to each student's individual learning needs. I focus on building strong conceptual understanding rather than memorization, helping students develop confidence and problem-solving skills. Each lesson includes guided practice, real-life examples, and regular feedback to ensure steady progress. Whether your child needs support with schoolwork, exam preparation, or strengthening foundational skills, my goal is to make math enjoyable, meaningful, and easy to understand in a positive and encouraging learning environment.

✔ One-on-one online lessons
✔ Personalized learning plans
✔ Homework and exam support
✔ Concept-based teaching

Ahmed

5.0

(3)

I specialize in tutoring programming, data structures, and computer organization for university students and enthusiastic beginners. Drawing from my daily work as a backend software engineer, my goal is to help you understand not just how to write code, but how the computer actually executes it. We will cover programming fundamentals in languages like C, C++, or Python, while exploring CPU architecture and memory management under the hood. We will also dive deeply into data structures such as linked lists, binary trees, and hash tables where my focus is ensuring you grasp the core theory and logic behind them, not just the code implementations. Having previously tutored mathematics, I know how to break down complex technical topics so you stay challenged but never overwhelmed. I assign hands-on coding exercises during and after every lesson to ensure you build practical, real-world engineering skills.