| 1 | A | B | C | D |
| --- | --- | --- | --- | --- |
| 2 | Number Nine Visual Technology - Number Nine Video Cards using Number Nine GPUs |  |  |  |
| 3 | #9 Model | #9 GPU | Memory | PC Bus Architecture |
| 4 | Imagine 128 | Imagine 128 | 4M, 8M VRAM | PCI |
| 5 | Imagine 128 Series 2 | Imagine 128-II | 4M, 8M H-VRAM | PCI |
| 6 | Imagine 128 Series 2e | Imagine 128-II | 4M EDO DRAM | PCI |
| 7 | Revolution 3D | T2R | 4M or 8M (base), 12M, 16M WRAM | PCI, AGP |
| 8 | Revolution IV | T2R4 | 16M, 32M SDRAM | PCI, AGP |
| 9 | Revolution IV-FP | T2R4 | 32M SDRAM | PCI, AGP |

Question: What generations did the Imagine series go through?
Answer: The Imagine series went through two generations: Imagine 128 and Imagine 128-II.