So Tuesday night I am watching an old (1995) episode of Friends on DVD when Chandler starts bragging about his new laptop . Seems it has 12 MB of RAM and a 500 MB hard drive.
This is of course humorous by 2009 standards. Currently a low end ($400) Dell Inspiron 15 laptop has 2 GB of RAM and a 160 GB hard drive. A GB is 1000 times as big as a MB. So the new machine has 167 times as much RAM and the hard drive is 320 times as large. Thus capacity has more than doubled every 2 years consistent with Moore's law .
Many things haven't changed too much since I was a kid in the 1960s. But the advances in computing technology are pretty incredible when you think about it.