Cloud computing

Cloud computing delivers computing resources, servers, storage, databases, networking, over the internet on demand, instead of requiring a business to buy and run its own physical hardware. A provider like AWS, Google Cloud or Firebase owns and maintains the infrastructure, and customers rent exactly the capacity they use, scaling up or down as needed. It's the model behind most modern web applications: instead of a server sitting in a closet, the app runs on infrastructure that can be provisioned in minutes and billed by usage.

What is cloud computing?

Cloud computing is the delivery of IT resources (compute power, storage, databases, networking, software) over the internet, on a pay-as-you-go basis, from a provider that owns and operates the underlying hardware in its own data centres. Instead of a company buying servers, cooling them and staffing a team to maintain them, it accesses the same capabilities remotely and pays only for what it consumes. The term covers a spectrum from raw virtual machines to fully managed databases and functions that run code without any server management at all.

How cloud computing works

A cloud provider runs vast data centres and exposes their capacity through an API or a dashboard. A developer provisions a resource, a virtual server, a storage bucket, a managed database, with a few clicks or a command, and it becomes available within seconds:

firebase deploy --only functions

Behind that command, the provider allocates hardware, configures networking and handles the physical maintenance, so the developer never touches a machine directly. Usage is metered continuously, and the bill reflects actual consumption rather than a fixed capacity purchased upfront.

The three main service models

• IaaS (Infrastructure as a Service): raw virtual machines, storage and networking, the customer manages the operating system and everything above it.
• PaaS (Platform as a Service): a managed environment to deploy code without handling servers or operating systems directly.
• SaaS (Software as a Service): a complete application delivered over the internet, with no infrastructure to manage at all.
• Serverless / BaaS: individual functions or backend services (auth, database, storage) provisioned automatically per request, billed per use.

Cloud computing vs on-premise infrastructure

Benefits, trade-offs and common pitfalls

Cloud computing removes the capital expense of hardware and lets a small team run infrastructure that would once have required a dedicated ops department. It also makes it trivial to launch in multiple regions or to survive a traffic spike, since capacity can be added automatically. The trade-off is ongoing cost: usage-based billing can grow unpredictably without monitoring, and a misconfigured resource left running racks up charges silently. Vendor lock-in is a real risk too, since each provider has its own APIs and pricing, so migrating away later takes real engineering effort. Setting budget alerts and reviewing usage regularly avoids most cost surprises.

Cloud computing and modern web applications

Most web applications built today lean on cloud services by default rather than a self-managed server: a managed database (Supabase, Firebase), a CDN and edge network (Cloudflare), and serverless functions for backend logic. This shortens time to launch since a team assembles proven managed services instead of provisioning and securing servers from scratch, and it scales automatically as traffic grows.

Cloud computing at BeBranded

We build web applications on managed cloud infrastructure by default, so our clients never inherit a server to patch or a database to babysit. It is part of every web application we design, chosen to scale with the business instead of becoming a maintenance burden.