2.  A bit is the smallest piece of information a computer can record.  It means that an electrical signal is on (1) or off (0).  A byte is 8 bits and has 256 possible combinations.  One byte is required to record the capital letter A from your keyboard (or any other single character.)

3.  A Terabyte is one trillion bytes.*  In order to help picture what one trillion looks like, let’s imagine that one byte is one dollar.  We’ll start with a $100 bill for our demo (100 bytes.) *Actually, it’s 1,099,511,627,776 bytes, but close enough.

4.  A packet of one hundred $100 bills is less than 1/2" thick and contains $10,000.  Ten Kilobytes would be equal to about ten paragraphs of text.

5.  Believe it or not, this next little pile is one million dollars (100 packets of $10,000).  1 Megabyte could hold the equivalent of a small book.

6.  While a measly $1 million looked a little unimpressive, $100 million is a little more respectable.  100 Megabytes might hold a couple of volumes of encyclopedias.

7.  And one BILLION dollars—now we're really getting somewhere.  1 Gigabyte could hold the contents of about 10 yards of books on a shelf.

8.  Next we'll look at ONE TRILLION dollars.  What is a trillion dollars?  Well, it's a million million.  It's a thousand billion.  It's a one followed by 12 zeros.  Ladies and gentlemen, I give you $1 trillion dollars...

9.  And notice those pallets are double stacked.

10.  3.6 million 300KB images  300 hours of good quality video  1,000 copies of the Encyclopedia Britannica  Ten Terabytes could hold the printed collection of the entire Library of Congress. That's a lot of data.

11.  1024 Bytes = 1 Kilobyte  1024 Kilobytes = 1 Megabyte  1024 Megabytes = 1 Gigabyte  1024 Gigabytes = 1 Terabyte  1024 Terabytes = 1 Petabyte  1024 Petabytes = 1 Exabyte  1024 Exabytes = 1 Zettabyte  1024 Zettabytes = 1 Yottabyte  1024 Yottabytes = 1 Brontobyte  1024 Brontobytes = 1 Geopbyte

12.  20 million 4-door filing cabinets full of text.  500 billion pages of standard printed text.

13.  All of the words ever spoken by mankind.

14.  The entire World Wide Web.  It would take approximately 11 trillion years to download a Yottabyte file from the Internet using high-power broadband.