Realizations:
Average Common ROM Storage Sizes;
1MB (Megabyte) = 1980
1GB (Gigabyte) = 1997
1TB (Terabyte) = 2009
Predictions:
Average Common ROM Storage Sizes;
1PB (Petabyte) = 2017
1EB (Exabyte) = 2030
1ZB (Zettabyte) = 2050
1YB (Yottabyte) = 2100

VIA CNET