cloud computing

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 Cloud computing is the on-demand delivery of computing services — such as servers, storage, databases, networking, software, and analytics — over the internet. Instead of buying and maintaining physical hardware, you rent resources from a cloud provider (like AWS, Microsoft Azure, or Google Cloud) and pay only for what you use.



  1. Instead of buying a computer or server, you use someone else’s powerful computer (like Amazon, Microsoft, or Google) through the internet.

  2. You don’t have to worry about fixing, upgrading, or maintaining it — the company does it for you.

  3. You just pay for what you use, like paying electricity or mobile recharge.

Simple Example

  • When you use Google Drive to save files, you’re not storing them on your own computer — you’re using Google’s computers (the cloud).

  • When you watch movies on Netflix, the videos come from cloud servers, not from your personal device.




  • Rank
  • Strengths
  • 1
  • Largest market share, wide services (AI, ML, IoT, databases, serverless).
  • 2
  • Strong enterprise adoption, hybrid cloud, AI integration.
  • 3
  • AI/ML leadership, BigQuery analytics, developer-friendly tools.
  • 4
  • Asia-Pacific leader, strong e-commerce and enterprise solutions.
  • 5
  • Database expertise, growing AI/multi-cloud adoption.
  • 6
  • Hybrid cloud, enterprise security, AI with Watson.
  • 7
  • CRM-focused cloud, strong SaaS ecosystem.
  • 8
  • Enterprise resource planning (ERP) and business applications.
  • 9
  • China-based, gaming, social media, and AI services.
  • 10
  • Specialized in data cloud, analytics, and AI infrastructure. 

Computing means using a computer to process information — like doing calculations, running programs, or solving problems.



Cloud Storage means saving your files on the internet instead of your computer’s hard drive. Your data (photos, videos, documents) is stored on big servers owned by companies like Google, Microsoft, or Apple, and you can access it anytime using the internet.



  • Upload files → You put your data into the cloud (like Google Drive, OneDrive, iCloud).

  • Store safely → Companies keep multiple copies in different places so your data isn’t lost.

  • Access anywhere → You can open your files from phone, laptop, or tablet.

  • Share easily → Send links or let others work on the same file.


  • Saving photos in Google Photos.

  • Keeping documents in OneDrive.

  • Watching videos stored in Dropbox.



  • Provider
  • Free Storage
  • Notes
  • 15 GB
  • Shared across Gmail, Google Photos, and Drive.
  • 5 GB
  • Integrated with Microsoft Office apps.
  • 5 GB
  • Best for Apple users (iPhone, iPad, Mac).
  • 20 GB
  • Strong focus on privacy and encryption.
  • 1 TB (1024 GB)
  • Extremely large free plan, but ads and restrictions apply.



Google Cloud is Google’s platform that provides cloud computing services — meaning you can use Google’s powerful computers, storage, and software through the internet instead of your own PC.





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