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.
In the same way, A Terabyte is not 1024 Gigabytes, but 1000 Gigabytes. Both 'giga' and 'mega' along with 'kilo' and 'tera' are metric prefixes which means they increase by scale factors of 1000. However, 1024 Bytes is a Kibibyte, and 1024 Kibibytes is a Mebibyte.