IBM Generations
| IBM Model | 2400 Series | 3400 Series |
|---|---|---|
| Model numbers | 2401, 2415, 2420, 2440 | 3410, 3420, 3422, 3440 |
| Density (bits/in/track) | 800, 1600 | 1600, 6250 |
| Tape speed (in/s) | 18.75–200 | 120–200 |
| Transfer rate (B/s) | 15,000–320,000 | 1,250,000 |
| Interblock gap (in) | 0.6 | 0.3 |
| Rewind speed (in/s, avg.) | ||
| Start time (ms) | ||
| Stop time (ms) | ||
| Length of reel (ft) | 2400 max | 2400 max |
| Base composition | Plastic | Plastic |
Read more about this topic: 9 Track Tape
Famous quotes containing the word generations:
“Everywhere we are told that our human resources are all to be used, that our civilization itself means the uses of everything it has—the inventions, the histories, every scrap of fact. But there is one kind of knowledge—infinitely precious, time- resistant more than monuments, here to be passed between the generations in any way it may be: never to be used. And that is poetry.”
—Muriel Rukeyser (1913–1980)