This wide-format Sinhala ICT poster provides a clear, visual summary of the first three generations of computers, with key features, components, time periods, and example machines.
📘 Poster Content (Sinhala + English):
🧩 First Generation (1939–1958)
- Technology: Vacuum Tubes, Relay circuits
- Storage/Input: Punch cards, paper tape
- Examples: ENIAC, EDVAC, IBM-701
- Features: Large size, low speed, high heat, manual operation
🧩 Second Generation (1959–1963)
- Technology: Transistors
- Storage: Magnetic tape/disk
- Programming: High-level languages introduced
- Examples: IBM 1620, CDC 3600, UNIVAC 1108
- Features: More reliable, faster, smaller than 1st gen
🧩 Third Generation (1964–1973)
- Technology: Integrated Circuits (ICs), Microchips
- Memory: Faster RAM and storage
- Machines: Mainframe computers
- Examples: IBM-360, Honeywell-6000, TDC-316
- Features: Compact size, multi-user support
🖼️ Image Size:
- Dimensions: 7000 x 1000 pixels
📏 Real-World Size:
| DPI | Width (in) | Height (in) | Width (ft) | Height (ft) |
|---|---|---|---|---|
| 300 | 23.3 in | 3.3 in | 1.94 ft | 0.28 ft |
| 72 | 97.2 in | 13.9 in | 8.1 ft | 1.15 ft |
🖨️ Ideal for wide banners, timeline displays, or digital screens.
🎨 Format & Editability:
- Format: PNG (transparent layer not included)
- ✅ Editable using:
- Adobe Fireworks
- Photoshop / GIMP
- Any image editor supporting high-res PNG
🎯 Best For:
- G.C.E. O/L ICT – Computer Generation topic
- Timeline-based lessons and quizzes
- Sinhala medium ICT and Technology students
- School wall charts / posters