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.
The Philips Portable DVD player is compatible with most DVD and CD discs available in the market. DVD, DVD+/-R, DVD+/-RW, (S)VCD, and CD â all of them can play on the DVD player. DVD+/-R is a shorthand term for a DVD drive that can accept both of the common recordable DVD formats. Likewise, DVD+/-RW handles both common rewritable disc types.