Table 3: Prediction of Areal density and Track Density during the magnetic recording density evolution with Grain Density or particles density conjecture.
Linear Density or Areal Density
|
Track Density (tpi) |
Particle Density (ppci) |
LD = 104 bits/in [21] AD = 106 bits/in2 (1974) |
100 |
2 × 1015 |
LD = 120 × 103 bits/in [71] AD = 2 GBits/in2 (1992) |
17 × 103 |
2 × 1017 |
LD = 52.2 × 104 bits/in [72] AD = 50.2 GBits/in2 (2000) |
90 × 103 |
2 × 1020 |
LD = 80 × 104 bits/in [73] AD = 100 GBits/in2 (2008) |
125 × 103 |
2 × 1023 |