19 Eylül 2022

Types Of Cloud Services and Types of Clouds


Types of Cloud Services


Infrastructure as a Service

The cloud provides the underlying platforms

  • Compute

  • Networking

  • Storage

The client handles and is responsible for all the rest. In other words, the cloud provides minimum infrastructure and we the clients of cloud are expected to take care of all the rest.

The most common example of IaaS is Virtual Machines.

The clouds provide the host machine, networking and disks.

The client creates the virtual machine, installs software on it, patches it, maintains it etc. So it is the responsibility of the client to make sure that the virtual machine is up and running, and the cloud has nothing to do with it.


Platform as a Service

The cloud provides a platform for running apps.

Including Compute, networking, storage, runtime environment, scaling redundancy, security, updates, patching, maintenance etc.

The client just needs to bring the code to run

As a developer we just write the codes and upload it to cloud and the cloud takes care of all the rest.

Most common examples: Web Apps

The cloud provides the runtime for running web apps

The client uploads the code, and it just runs

The client has no access to the underlying virtual machines


Software as a Service

A software running completely in the cloud.

The user doesn’t need to install anything on premises or on his machine

The provider of the software takes care of updates, patches, redundancy, scalability etc.

Common Examples: Office 365, SalesForce

We have no idea what is the infrastructure that Office 365 and Salesforce are running on

What are the virtual machines, what language are they developed in, what is a database and so on.

Types of Clouds

Public Cloud

The cloud is set up in the public network

Managed by large companies

Accessible through the internet

Available to all clients and users

Clients have no access to underlying infrastructure

Examples: AWS, Azure, Google Clouds, IBM Clouds

Private Cloud

A cloud set up in an organization’s premises

Managed by the organization’s IT team

Accessible only in the organization’s network

Available to users from the organizations

Uses private cloud infrastructure and engines

Contains a subset of the public cloud’s capabilities

Examples VMWare Cloud, Red Hat OpenShift Container Platform, Azure Stack

Used for privacy and security issues

Hybrid Cloud

A cloud set up in organization’s premises but also connected to the public cloud

Workload can be separated between the two clouds. For instance, sensitive data in the organization’s premises, public data in the public cloud.

So, for example, the organization can decide that the usernames, passwords and credit cards of its users will be stored inside the organization’s premises, but for example the professional profile of its users, such as the ones in LinkedIn will be stored in the public cloud.

Examples: Azure Arc, AWS Outposts