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.
A gigabyte is a multiple of unit byte and represented by ten to the ninth power in the International System of Units (SI). One gigabyte is equal to 1,000,000,000 bytes. It comes after megabyte (MB) on the scale and before terabyte (TB).