Which of the following is not an example of web browser?

Correct option is A

Android is a mobile operating system developed by Google, not a web browser. A web browser is an application used to access and render web pages (HTML/CSS/JS) over HTTP/HTTPS. Opera, Microsoft Edge and Mozilla Firefox are all full-featured web browsers with their own engines or based on Chromium. While Android devices ship with a browser app (e.g., Chrome), Android itself is merely the platform those apps run on. Therefore, among the options, only Android is not a web browser.
Important Key Points
1. Android = OS: Provides system services, app runtime, and APIs; not a browsing application.
2. Opera: Cross-platform browser known for data-saving modes and built-in VPN/ad-blocker.
3. Edge: Microsoft’s browser (Chromium-based) with features like Collections and built-in security.
4. Firefox: Mozilla’s browser using the Gecko engine, emphasizing privacy and open standards.
5. Browser functions: Rendering engine, JavaScript engine, networking stack, extensions, security sandboxing.
6. Usage context: Browsers are apps installed on operating systems like Android, Windows, macOS, and Linux.
Knowledge Booster
· Why not (b) Opera? It’s a long-standing web browser with mobile and desktop versions.
· Why not (c) Edge? Microsoft’s modern web browser replacing Internet Explorer.
· Why not (d) Firefox? A widely used open-source browser focused on privacy.
· On Android, common browsers include Chrome, Firefox, Edge, Opera and privacy-focused options like Brave; the OS is just the host platform.