What is driven?

Cloud computing is a way of delivering computing services-like storage, databases, servers, networking, software, and analytics-over the internet (“the cloud”) instead of using local hardware or personal devices. You rent what you need from a provider and access it online, paying only for what you use.

Let's break it down

  • Infrastructure as a Service (IaaS): You get virtual machines, storage, and networks, just like renting a computer in a data center.
  • Platform as a Service (PaaS): You receive a ready‑to‑use platform for building, testing, and deploying applications without managing the underlying hardware.
  • Software as a Service (SaaS): You use complete applications (like email or CRM) through a web browser, with everything managed by the provider.
  • Public, Private, and Hybrid Clouds: Public clouds are shared resources from providers like AWS, Azure, or Google Cloud. Private clouds are dedicated to a single organization. Hybrid clouds combine both for flexibility.

Why does it matter?

Cloud computing lets individuals and businesses scale resources up or down instantly, reduces the need for expensive hardware, and speeds up development by providing ready‑made tools. It also enables remote work, global collaboration, and faster innovation because you can experiment without large upfront costs.

Where is it used?

  • Web and mobile apps: Most modern apps run on cloud servers.
  • Data storage and backup: Services like Dropbox, Google Drive, and Amazon S3 store files securely online.
  • Big data and analytics: Cloud platforms process massive datasets for insights.
  • Machine learning: Training models on powerful cloud GPUs without buying them.
  • Gaming: Multiplayer servers and streaming services use cloud infrastructure.
  • Enterprise IT: Companies move email, CRM, and ERP systems to the cloud.

Good things about it

  • Cost‑effective: Pay‑as‑you‑go pricing eliminates large capital expenses.
  • Scalability: Instantly add or remove resources based on demand.
  • Reliability: Redundant data centers provide high uptime and disaster recovery.
  • Accessibility: Access services from anywhere with an internet connection.
  • Speed of innovation: Pre‑built services let developers focus on core features.

Not-so-good things

  • Dependence on internet: Without a stable connection, you can’t access services.
  • Security concerns: Storing data off‑site raises privacy and compliance questions.
  • Potential cost overruns: Uncontrolled usage can lead to unexpectedly high bills.
  • Vendor lock‑in: Switching providers may be difficult due to proprietary tools or data formats.
  • Performance latency: Some applications may experience slower response times compared to on‑premises hardware.