Cloud Computing | IGCSE Information and Communication Technology Preparation - Year 11 PDF Download

Cloud Computing

• Cloud computing involves storing data on remote servers and accessing it via the internet.
• Local storage, on the other hand, refers to a storage device directly connected to a computer.

• Types of Cloud Storage
  • Public Cloud: The customer and the cloud storage provider are from different companies.
  • Private Cloud: The customer and the cloud storage provider are part of the same organization.
  • Hybrid Cloud: Combines public and private cloud options, keeping sensitive data private while offering public cloud services for less sensitive information.
• Data Duplication in Cloud: Cloud data is replicated and stored on alternate servers to ensure data accessibility during system failures, upgrades, and maintenance.

Advantages of Cloud Storage

• Scalability: Businesses can easily adjust the scale of services to meet changing needs.
• Cost Saving: Cloud storage eliminates the need for businesses to invest in costly infrastructure and maintenance. Significant cost savings can be achieved by utilizing cloud services.
• Accessibility: Cloud services enable global accessibility, facilitating remote work and data sharing.
• Reliability: Cloud computing providers ensure high uptime, guaranteeing constant service availability.
• Storage Space: Cloud services offer virtually limitless storage capacity for users.
• Backup and Recovery: Cloud backups enable swift data recovery in case of device failures.
• File Synchronisation: Files can be synchronized across multiple devices for seamless access.
• Convenience: Users can access their data from anywhere without the need for physical storage devices.

Cloud Computing Advantages

• High Uptime: Cloud computing providers ensure that services are consistently available to users.
• Storage Space: Cloud services offer virtually limitless storage capacity.
• Backup and Recovery: In case of hardware failures, data backups stored in the cloud enable easy recovery.
• File Synchronization: Files can be synchronized across multiple devices for seamless access.
• Convenience: Users can access their data stored in the cloud without the need to carry physical storage devices.

Disadvantages of Cloud Storage

• Internet Connection: A stable internet connection is necessary for utilizing cloud storage effectively.
• Security: Cloud storage can be susceptible to security breaches, potentially compromising sensitive data.
• Dependency: Users rely on the cloud storage provider for consistent and dependable service.
• Cease to Trade/Dissolve: If the cloud storage provider goes out of business, there's a risk of data loss.
• Cost: Increasing storage or bandwidth needs could lead to higher expenses over time.