Powers of Ten
1,000,000,000,000,000,000 exa 1018
1,000,000,000,000,000 peta 1015
1,000,000,000,000 tera 1012
1,000,000,000 giga 109
1,000,000 mega 106
1,000 kilo 103
1 uni 1
0.001 milli 10-3
0.000001 micro 10-6
0.000000001 nano 10-9
0.000000000001 pico 10-12
0.000000000000001 femto 10-15
0.000000000000000001 atto 10-18
For the time being, we only have got gigabytes of hard disk drives (HDD) and megabytes of random access memory (RAM) inside our PCs ... When, I wonder, will we have petabytes-sized HDDs and terabytes of RAM in our PCs -- that is, two orders above current technology ...?
The relatively new field of nano-technology has still to come to fruition, with marketable consumer products ... Sigh!
Hey! We still use micro-chips -- not nano-chips!
Meanwhile, unless I am mistaken, in electronics, I think we still use some tiny ceramic "disk"-shaped capacitors that can store picofarads of electric charge ...