# Cloud Computing

> How clouds are built, deployed and sold: layered architecture, public, private and hybrid clouds, IaaS, PaaS and SaaS, storage and charging.

Course code: KCS-713 (AKTU). Code shown in the November 2022 lesson. Check that your current AKTU scheme uses the same code.

Cloud computing is about using computing power, storage and software over a network instead of owning and running all of it yourself. The subject explains how cloud systems are layered, how they are deployed, what each service model actually gives you, and how providers store data and charge for it.

Lessons here follow the AKTU Cloud Computing course as taught on the Unique AppSites YouTube channel, with handwritten notes by Anubhav Goel.

## What you'll learn
- Explain the four layers of a cloud architecture.
- Compare public, private and hybrid clouds.
- Tell IaaS, PaaS and SaaS apart, with examples.
- Describe the types of cloud storage and how providers charge.

## Units with content
- [Cloud Computing Unit 3: Cloud Architecture, Services and Storage](https://www.uniqueappsites.com/subjects/cloud-computing/units/3): Unit 3 explains how a cloud is structured in layers, the three ways a cloud can be deployed, the services providers offer, the types of cloud storage, and how usage is charged.

## Resources
- Video lesson: [Cloud Computing Unit 3: Cloud Architecture, Services and Storage](https://www.uniqueappsites.com/lessons/cloud-computing-unit-3-full-explanation)
- Notes: [Cloud Computing Unit 3 handwritten notes](https://www.uniqueappsites.com/notes/cloud-computing-unit-3-notes)
- Revision checklist: [Cloud Computing Unit 3 revision checklist](https://www.uniqueappsites.com/revision/cloud-computing-unit-3-revision-checklist)

## Before you start
- Networking basics: what a server, an IP address and a data center are.
- Operating system basics: processes, memory and storage.
- A rough idea of virtualization: several virtual machines running on one physical machine.

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Source page: https://www.uniqueappsites.com/subjects/cloud-computing
Published by Unique AppSites (https://www.uniqueappsites.com/), the channel by Anubhav Goel. Course codes and syllabi can change. Match the material to your current university scheme before relying on it for exam preparation.