GCE A/L ICT - Unit 01 - 2026 Batch
Platform as a Service (PaaS)
- This allows developers to use platforms for creating and managing applications.
- Services include software tools, libraries, and various technical support to facilitate easy development.
- By using PaaS, developers can avoid managing infrastructure and focus solely on application development.
Software as a Service (SaaS)
- SaaS allows users to access software and applications over the Internet without installing them on individual devices.
- Examples:
- Email Services: Tools like Gmail and Outlook.
- Customer Support Tools: Services for FAQs, online help, and ticketing systems.
Characteristics of Cloud Computing
- Reduced Cost: No need for physical servers or maintenance.
- Scalability: Ability to expand or reduce resources as required.
- Accessibility: Resources available anytime, anywhere.
- Secure Data: Ensures data backup and security for continuity.
System
A system is an organized structure consisting of interconnected components working together to achieve a common goal.
Features of a System
- Inputs and Outputs: A system receives inputs, processes them, and generates outputs.
- Processing: Transforms data into meaningful information.
Types of Systems
- Open Systems: Interact with external environments.
- Closed Systems: Operate independently without external interaction.






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