Cloud Computing – Complete Summary Notes for BCA, BSc IT & Computer Science Students

Cloud Computing – Summary
Notes
1. Introduction




Cloud Computing delivers computing resources (servers, storage,
databases, networking, software) over the internet.


Key Benefits:


Scalability
Cost efficiency
Flexibility & Accessibility
Disaster Recovery
Collaboration


---


2. Cloud Service Models

, Model Description Examples


IaaS (Infrastructure as a Service) Provides virtualized computing
resources AWS EC2, Google Compute Engine
PaaS (Platform as a Service) Provides platforms to develop and
deploy applications Heroku, Google App Engine
SaaS (Software as a Service) Provides ready-to-use applications
over the internet Gmail, Microsoft 365, Salesforce
---


3. Deployment Models


Model Description Example


Public Cloud Services offered over the internet to the public
AWS, Azure, GCP
Private Cloud Exclusive cloud for one organization VMware,
OpenStack
Hybrid Cloud Combination of public and private clouds Enterprise
hybrid solutions
Community Cloud Shared by multiple organizations with common
goals Research or educational clouds
---