Tech in Diagrams
Understand IT, one diagram at a time

Learn IT visually.

Cloud, architecture, DevOps and core IT — explained through crafted interactive diagrams instead of long articles.

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Interactive diagrams
22Interactive diagrams
Learning areas
4Learning areas
Guided paths
3Guided paths
Walls of text
0Walls of text
System map · request path
PeopleNetworkServicesDataObservability
ENTRY LAYERWhat the user touches01CLOUD PLATFORMProvider-operated environment02UserBrowser · mobile · scriptApplicationInterface & product logicAPIContract · auth · limitsCloud servicesProvisioned on demand, billed by usageComputeQueuesCacheDatabaseSource of truthMonitoringMetrics · logs · tracesInfrastructureThe layer underneathRacksNetworkPower
Interactive system map of a request travelling into a cloud platform.

Hover to trace a route, click any element for a short explanation.

Four learning areas

Start where you are

Every area is built from diagrams, not articles. Pick one and follow the connections.

01 5

IT Fundamentals

Build the foundations.

The building blocks every other topic depends on: hardware, operating systems, servers, data and interfaces.

Open area
02 9

Cloud Computing

Understand modern cloud.

How on-demand computing works: service models, virtualisation, networking, regions, security, observability, AI services and Microsoft cloud workplaces.

Open area
03 4

Architecture

See how systems connect.

The shapes of real systems: clients and servers, load balancing, service boundaries and content delivery.

Open area
04 4

DevOps

Learn how modern systems run.

How software gets built, shipped and operated: pipelines, containers, infrastructure as code and operational signals.

Open area

Diagram first

Three diagrams to start with

Each concept opens with a large interactive diagram. Hover to trace connections, click a node for a short, precise explanation.

Beginner 6 min

What is Cloud Computing?

Cloud computing is on-demand access to computing resources — servers, storage, databases and higher-level services — operated by a provider and consumed over a network.

Open the diagram
Beginner 5 min

What is CI/CD?

CI/CD is an automated path from a code change to a running release, with checks at every step.

View diagram
Beginner 4 min

What is a Load Balancer?

A load balancer spreads incoming requests across several healthy instances of the same service.

View diagram

22 interactive concept diagrams and growing.

All concepts

Learning paths

Follow a connected sequence

Paths order the diagrams so each one builds on the last.

View all paths
Beginner05 STEPS

IT Basics

The vocabulary everything else assumes: machines, operating systems, servers, data and APIs.

  1. 1What is a Computer?
  2. 2What is an Operating System?
  3. 3What is a Server?
  4. 4What is a Database?
  5. 5What is an API?
Beginner06 STEPS

Cloud Fundamentals

From the definition of cloud computing to service models, virtual machines, regions and security.

  1. 1What is Cloud Computing?
  2. 2IaaS vs PaaS vs SaaS
  3. 3What is a Virtual Machine?
  4. 4Cloud Networking Basics
  5. 5Regions & Availability Zones
  6. 6Cloud Security Basics
Intermediate05 STEPS

DevOps Foundations

How modern software is shipped and kept running: pipelines, containers, automation and signals.

  1. 1What is CI/CD?
  2. 2What are Containers?
  3. 3Infrastructure as Code
  4. 4Monitoring and Alerting
  5. 5Monitoring vs Observability

Ready when you are

One diagram is worth a thousand paragraphs.

Begin with cloud computing — the concept everything else in modern IT leans on.

Start with Cloud Computing