Pancreas - Additional images. 1  The duodenum and pancreas. 2  Pancreas of a human embryo at end of sixth week. 3  Dog pancreas magnified 100 times. 4  The pancreas and its surrounding structures. 5  Duodenum and pancreas. Deep dissection.
The answer lies in the difference between analog and digital recordings. A vinyl record is an analog recording, and CDs and DVDs are digital recordings. Take a look at the graph below.
Pop music is a type of popular music that many people like to listen to. The term pop music can be used for all kinds of music that was written to be popular. The word pop music was used from about 1880 onwards, when a type of music called music was popular.