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:
“Parenthood has really changed for me. It’s much more than taking care of my son; more than saying yes and no. Now I have to figure out what I think and what I know so that I can answer his questions and explain things to him.”
—Anonymous Parent. As quoted in Between Generations by Ellen Galinsky, ch. 4 (1981)