About
Understand IT, one diagram at a time.
Tech in Diagrams is a visual learning platform for beginners, students, career changers and non-technical professionals. Most IT material explains systems in paragraphs; systems are shaped like graphs. So we start with the graph.
The diagram is the lesson
Every concept opens with a large interactive diagram. Text exists to support the visual, never to replace it.
Precise, not simplified away
Explanations stay short but technically correct, with official vendor and standards documentation linked on each concept.
One consistent visual language
The same node shapes, connectors, flow animation and colour meanings are reused everywhere, so new topics feel familiar immediately.
What a concept page contains
- A large interactive diagram with hover highlighting and click-through explanations.
- What you are looking at, how it works, and why it matters — in a few sentences each.
- Compact key terms, one common misconception and one real-world example.
- Links to official sources, then a clear next concept.
No long articles. No quizzes. No blog.
Four learning areas
IT Fundamentals
Build the foundations.
Hardware & Computers · Operating Systems · Servers & Storage · Data & APIs
Cloud Computing
Understand modern cloud.
Cloud Concepts · Compute & Virtualisation · Cloud Networking · Security & Governance · AI in the Cloud · Microsoft Cloud & Modern Work
Architecture
See how systems connect.
System Shapes · Traffic & Scaling · Service Boundaries · Delivery
DevOps
Learn how modern systems run.
Delivery Pipelines · Containers · Automation · Operations
Start with cloud computing
The first full concept diagram explains what cloud computing actually is — including the infrastructure that never went away.
Open the diagram