End-to-end devices are devices where communication starts or ends in a network.
👉 These devices send, receive, or process data, but they do NOT forward traffic like routers or switches.
📤 Sender device OR 📥 Receiver device = End Device
Act as a source or a destination of data
Used directly by users 👨💻
Assigned an IP address 🌍
Communicate using protocols (HTTP, FTP, SMTP). 📡
Can act as Client, Server, or both
Definition:
A general-purpose computing device used to access networks and applications.
Role in Network:
Mostly acts as a client
Sends requests to servers
Examples:
Browsing websites 🌐
Office work 📄
Accessing company server 🏢
Definition:
A portable computer with built-in Wi-Fi capability.
Role:
Client device
Connects via Wi-Fi or LAN cable
Example:
Laptop connected to office Wi-Fi → accessing company portal.
Definition:
Handheld devices capable of Wi-Fi and mobile data (4G/5G).
Role:
Client device
Can act as a hotspot 🔥
Examples:
WhatsApp messaging 💬
Online payments 💳
Video calls 📹
Definition:
A powerful computer that provides services to other devices.
Role:
Acts as Server
Always ON 🔌
Handles multiple client requests
Types:
Web Server 🌐
File Server 📁
Mail Server 📧
Database Server 🗄
Example:
Browser → Requests Google → Google Server Responds
Definition:
Smart devices connected to the internet that collect & exchange data automatically.
Examples:
Smart TV 📺
Smart Watch ⌚
CCTV Camera 🎥
Smart Bulb 💡
Sensors 🌡
Role:
Sender, receiver, or both
Communicate with cloud servers ☁️
| Client | Server |
|---|---|
| Requests service | Provides service |
| Depends on server | Independent |
| Example: PC, Mobile | Example: Web Server |
| Not always ON | Always ON |
🏠 Home Network
• Mobile phone
• Laptop
• Smart TV
⬇️
All connected to Wi-Fi router
⬇️
Each device is an End Device
• End devices do not route traffic
• They generate or consume data
• Examples include PCs, mobiles, servers, IoT
• Identified using IP and MAC address
If interviewer asks:
🡪 “What are end devices in a network?”
Say confidently:
End-to-end devices are network devices that act as the source or destination of data. They are used by users to send, receive, or process information, such as PCs, laptops, mobile phones, servers, and IoT devices.
