What Is Cloud Computing?

Cloud computing refers to the use of remote servers on the internet to store, manage and process data instead of using a local computer or personal storage device.

Instead of storing files only on your own device, cloud computing allows you to access data and applications from anywhere using the internet.

Examples of cloud services include:

• Google Drive

• Microsoft OneDrive

• Dropbox

• iCloud

These services allow users to store files online and access them from multiple devices.

How Cloud Computing Works

Cloud computing works through remote data centres operated by cloud service providers.

The process works as follows:

1️⃣ Users upload data to cloud servers through the internet.
2️⃣ The data is stored in remote data centres.
3️⃣ Users can access their files from any device connected to the internet.

This system allows users to work from different locations without needing local storage.

Types of Cloud Services

There are several types of cloud computing services.

Public Cloud

Public cloud services are provided by companies and are available to many users over the internet.

Examples:

• Google Drive

• Dropbox

Private Cloud

A private cloud is used by a single organisation.

It provides greater control and security but requires more resources to manage.

Hybrid Cloud

A hybrid cloud combines both public and private cloud systems.

Organisations can store sensitive data on a private cloud while using public cloud services for general tasks.

Advantages of Cloud Computing

Cloud computing provides many benefits.

✅ Access files from anywhere
✅ Easy data sharing and collaboration
✅ Automatic backups
✅ Reduced need for physical storage devices
✅ Scalable storage capacity

Cloud services are widely used in education, business and remote work environments.

Disadvantages of Cloud Computing

Although useful, cloud computing also has some limitations.

❌ Requires a reliable internet connection
❌ Possible security concerns if data is not properly protected
❌ Subscription costs for large storage plans

Because of these risks, organisations must ensure strong security measures are in place.

Real-Life Example

Students often use cloud computing when they:

• Save assignments to Google Drive

• Share documents with classmates

• Access files from different devices

This allows work to be stored safely and accessed anywhere.

Exam Tip (2210 / 0478)

Students are commonly asked to:

• Define cloud computing

• Give examples of cloud services

• Explain advantages and disadvantages of cloud computing

A common exam question is:

Explain one advantage of cloud computing.

Practice Question

Explain one advantage of cloud storage.

Answer

Cloud storage allows users to access their files from any location using an internet connection.

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