1. Fluctuations of aggregate economic activity. 2.Cycles Expansion/Boom and Contraction/Recession. Peak and Trough: They are the turning Points of the business cycle. 3. Comovements of many macro variables over the business cycle.
Section 5: Using external media: CDs, DVDs and removable USB storage devices. â¢ dvd-r:until about 2005 the most common and portable format; cannot be erased or reused. â¢ dvd-rw:are-writable version of-rformat, similar to cdrw format CD discs.
March 31, 2015. A DVD drive is a component of a computer or other electronic device designed specifically to utilize digital versatile discs, or DVDs. They are installed on everything from desktop computers, laptops, DVD players, cars, televisions and many other devices and areas. They have grown from their first inception in 1997 to the Blu-Ray discs today.