The National Research Council (2002) associates the indicators of self-management (self-control, perseverance, stress management and goal-setting) with personal and social assets that facilitate positive youth development in the area of psychological and emotional development.
A Petabyte is approximately 1,000 Terabytes or one million Gigabytes. It's hard to visualize what a Petabyte could hold. 1 Petabyte could hold approximately 20 million 4-door filing cabinets full of text. It could hold 500 billion pages of standard printed text.
So, depending on the chart you use there, a terabyte is 1000x1000x1000x1000 bytes, or 1,000,000,000,000 bytes (one trillion). 1000 bytes is a kilobyte, 1000 kilobytes is a megabyte, 1000 megabytes is a gigabyte and 1000 gigabytes are a terabyte. Of course, not every 1TB drive has the same amount of available storage. But, let's stick with how it will have a million megabytes, give or take. If your word document was 1 megabyte, then you could fit a million of them. If your word document was 10 megabytes, you could fit a hundred thousand of them.