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:
“The mode of founding a college is, commonly, to get up a subscription of dollars and cents, and then, following blindly the principles of a division of labor to its extreme,—a principle which should never be followed but with circumspection,—to call in a contractor who makes this a subject of speculation,... and for these oversights successive generations have to pay.”
—Henry David Thoreau (1817–1862)