What is Cloud?
Someone else's computers. Servers in massive data centres you rent instead of own — AWS, Google Cloud, Azure.
The cloud is really just a polished name for computers that live somewhere else and that you rent instead of own. When something runs "in the cloud", it operates in large data centres run by providers like Amazon (AWS), Google or Microsoft (Azure), and you reach it over the internet.
Compare owning a car with taking a taxi or hiring one. With your own car you buy it, service it, insure it and park it — whether you drive a lot or a little. With the cloud you pay for what you actually use, and someone else handles maintenance. Need more capacity one day? Rent more. Quiet period? Scale back.
For your business, that means no buying expensive servers and storing them in a cupboard. You rent the power you need and can grow or shrink as the business changes.
Why does the cloud matter for your business?
The cloud makes it easier and cheaper to get started, because you avoid large upfront hardware investments. You pay for usage and can scale smoothly when needed.
It also adds reliability: serious cloud providers offer backups, high uptime and teams keeping things running around the clock. That is often both safer and more stable than managing your own servers alone.
The cloud in practice
Say you launch a new web service and do not know whether ten or ten thousand people will use it. In the cloud, the system can grow automatically when demand spikes and shrink when things quieten down — so you neither crash during success nor pay for idle capacity during slow periods.
Another everyday example is keeping your customer records and files in the cloud so the team can access everything whether they are in the office or working from home — secure, up to date and available anywhere.
Common questions about Cloud
What does the cloud mean?
The cloud means software and data run on computers in large data centres that you access over the internet, instead of on your own servers. In short: someone else's computer, available wherever you are.
Is the cloud secure?
Yes — major cloud providers invest heavily in security, backups and round-the-clock monitoring. It is usually safer than self-managed servers, provided access and configuration are handled correctly.
How much do cloud services cost?
You typically pay for what you use, which keeps things flexible. Small projects can cost very little; larger systems cost more, but you avoid expensive upfront hardware purchases.
Related terms
Serverless
There are still servers — you just do not need to worry about them. Someone else has the headache. You have the app.
API
Application Programming Interface. Think of a waiter who takes your order (request) and brings the food (data) from the kitchen (server).
Cache
Stored data that loads instantly instead of being fetched again. Often the reason your site feels fast — or why changes do not show up.
CDN
Content Delivery Network — copies of your site spread around the world so it loads quickly wherever your visitors are.
Database
Where all your data lives — users, orders, everything. Lose the database and you lose everything, which is why we back it up.
DNS
The internet's phone book. Translates zorc.se into an IP address so your browser finds the right server.