This Sinhala ICT poster provides a clear, visual breakdown of how modems work, internet signal flow, modem types, and different types of internet connections – ideal for students, teachers, and schools.
📘 Poster Content Overview:
🧭 Key Topics Covered:
- How a Modem Connects to the Internet
- Modulation and Demodulation Process
- Signal Flow (Analog to Digital and vice versa)
- Types of Internet Connections:
- DSL
- Cable
- Fiber Optic
- Satellite
- 5G
🧰 Modem Types Visualized:
- Internal Modem
- DSL Modem
- Cable Modem
- USB Modem
- Fiber Optic Modem
- Satellite Modem
📊 Technical Concepts:
- ISP (Internet Service Provider)
- IP Address Assignment
- Signal Transmission Paths
- Telephone Network Involvement (for DSL)
- Wall Jack → Splitter → Modem → Computer Setup
🖼️ Image Size:
- Dimensions: 5500 x 3000 pixels
📏 Real-World Print Size (approximate):
| DPI | Width (in) | Height (in) | Width (ft) | Height (ft) |
|---|---|---|---|---|
| 300 | 18.3 in | 10 in | 1.52 ft | 0.83 ft |
| 150 | 36.7 in | 20 in | 3.06 ft | 1.67 ft |
| 72 | 76.4 in | 41.7 in | 6.4 ft | 3.5 ft |
🎯 Great for both classroom posters and digital boards.
🎨 Format & Editability:
- Format: PNG (non-transparent)
- ✅ Can be customized using:
- Adobe Fireworks
- Adobe Photoshop
- GIMP / Photopea
- Any PNG-compatible editor
🎯 Ideal For:
- O/L ICT Internet lesson
- Networking basics introduction
- Sinhala Medium Tech/ICT education
- School posters and teacher handouts