GCE A/L ICT - Unit 01
- HTTP is a protocol used to transfer files (text, audio, video, animation, and other types) on the World Wide Web.
- A website refers to a collection of web pages identified by a unique address and accessed via the Internet.
- It connects to the web to transfer files or access online resources.
- Webpage represents each individual page within a website.
- Each website is uniquely identified by a URL (Uniform Resource Locator).
Mobile Communication
- Your mobile phone facilitates the transfer of electronic information and provides communication services.
- Typically, mobile communication occurs using various cellular systems.
- It operates through multiple techniques such as TDMA (Time Division Multiple Access), FDMA (Frequency Division Multiple Access), and CDMA (Code Division Multiple Access).
Mobile Computing
- Mobile computing involves performing computational processes through devices that integrate necessary technologies and enable seamless communication even during mobility.
Cloud Computing
Cloud computing refers to systems that enable storing, managing, and sharing data over the Internet.
Types of Cloud Computing Services
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Infrastructure as a Service (IaaS):
Includes services such as servers, storage, networks, security, and system management. -
Platform as a Service (PaaS):
Focuses on web application development and database services. -
Software as a Service (SaaS):
Offers applications such as communication tools, CRM (Customer Relationship Management), ERP (Enterprise Resource Planning), email, and games.
Infrastructure Service
- This allows organizations to maintain virtual environments for storing and managing various services and resources.




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