A complete visual explanation of Operating System types, architecture, and usage statistics in Sinhala, ideal for students in GCE O/L & A/L ICT, teachers, and school labs.
📌 Poster Highlights:
1. Operating System Role (Architecture Diagram)
- Flow from Human Users to Hardware via:
- Application Software
- Operating System
- Other System Software
(in a color-coded block diagram)
2. Desktop OS Usage Pie Chart
- Global market share of desktop OSs:
- Windows – 88%
- Mac – 10%
- Linux – 1%
- Others – 1%
3. Different Types of OS (Sinhala Table)
| Type of OS | Sinhala Name | Examples |
|---|---|---|
| Real-time OS | තත්යකාලීන පද්ධති | Embedded & Industrial OSs |
| Single-user, Single-task | එක පරිශීලකයෙකුට එක් කාර්යයක් | MS-DOS, Palm OS |
| Single-user, Multi-task | එක පරිශීලකයෙකුට බහු කාර්ය | Windows |
| Multi-user, Multi-task | බහු පරිශීලක බහු කාර්ය | UNIX, Mainframe |
4. Types of Architectures (English List)
- Desktop PCs
- Parallel Systems
- Distributed Systems
- Clustered Systems
- Real-time Systems
- Embedded Systems
📊 Additional Diagrams:
🖥️ Server OS Usage Pie Chart
- Windows – 37%
- Unix – 33%
- Linux – 13%
- Other – 17%
📱 Mobile OS Usage Pie Chart (US)
- Android – 51%
- iPhone (iOS) – 19%
- RIM (BlackBerry) – 14%
- Windows Mobile – 8%
- Others (Palm, Hiptop) – 3%, 3%, 2%
📂 File Information:
- Image Format: PNG or JPG
- Image Size: 3000 x 3500 pixels
- ✅ Can be edited with:
- Fireworks
- Photoshop
- GIMP
- Canva or Photopea (online)
🎓 Who Should Use This Poster?
- ICT Teachers (O/L and A/L)
- Students learning about:
- Operating Systems
- System Software
- Architecture of Computers
- School labs, tuition centers