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Python for Absolute Beginners
Write your first Python program, understand variables, loops, and functions in under an hour.
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welcome.py
# Welcome to CODEZZY
def start_learning():
skills = ["Python", "Web Dev", "Cyber Sec"]
for skill in skills:
print(f"Learning {skill}...")
return "Success!"
start_learning()
def start_learning():
skills = ["Python", "Web Dev", "Cyber Sec"]
for skill in skills:
print(f"Learning {skill}...")
return "Success!"
start_learning()
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Build modern websites and web apps with HTML, CSS, JavaScript, React, and Node.js through hands-on project-based lessons.
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Decode the OSI model, TCP/IP, DNS, routers, switches, and IP addressing with clear diagrams and real-world examples.
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Get comfortable with Ubuntu, essential commands, file systems, and permissions — essential skills for every developer.
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Explore SaaS, PaaS, IaaS, AWS, and Azure fundamentals to understand how modern applications run at scale.
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Learn how to register domains, configure DNS, choose hosting, set up SSL, and deploy your first website live.
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Learn database fundamentals, write powerful queries, and master SQL with hands-on examples covering SELECT, JOIN, indexes, and more.
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Web Development
HTML5 Semantic Elements Guide
Build accessible, SEO-friendly web pages using modern semantic HTML tags and best practices.
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Cyber Security
Introduction to Ethical Hacking
Understand the mindset, tools, and legal boundaries of ethical hacking for educational purposes.
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AI & ML
What Is Machine Learning?
Discover supervised, unsupervised, and reinforcement learning with everyday analogies and examples.
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Networking
OSI Model — 7 Layers Explained
Break down each layer of the OSI model with real packet flow examples you can visualize.
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Linux
50 Essential Linux Commands
Navigate the terminal confidently with the most-used commands for files, processes, and permissions.
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Cloud Computing
AWS Cloud Practitioner Basics
Learn core AWS services, regions, IAM, and pricing models for your first cloud certification.
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Domain & Hosting
How to Deploy a Website Live
From buying a domain to configuring DNS and uploading files — deploy your site step by step.
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Programming
JavaScript ES6+ Features
Arrow functions, destructuring, promises, and async/await explained with practical code snippets.
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Web Development
CSS Flexbox Complete Guide
Master flex containers, alignment, wrapping, and responsive layouts without frameworks.
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Cyber Security
Network Security Fundamentals
Firewalls, VPNs, intrusion detection, and secure network design principles for IT students.
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AI & ML
Introduction to Neural Networks
Understand neurons, layers, activation functions, and backpropagation in plain English.
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Calculate your semester and cumulative GPA instantly with credit-weighted grades.
Password Generator
Generate strong, random passwords with customizable length and character sets.
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Create QR codes for URLs, text, and contact info in seconds.
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Convert marks to percentage and letter grades for exams and assignments.
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