1. 1 Analog and Digital Recording Chapter 1: Computers and Digital Basics 1 Analog and Digital Recording_BrainPop

2. 1 Question - 1  1.What is the main difference between analog and digital technology? A.Digital technology reproduces sound more faithfully than analog technology B.Analog technology stores information as sound waves; digital technology stores it as strings of ones and zeroes C.Analog technology can be used to record sound and Images; digital technology can only be used to record sound D.Analog technology Is based on binary code; digital technology is based on electromagnets Chapter 1: Computers and Digital Basics 2

3. 1 Question - 2  2. Place the following events in sequences. A) A string of ones and zeroes are encoded on a disc; B) A sound wave is sampled by an ADC; C) A sound wave is converted into an electric signal. A.B,A,C B.B,C,A C.C,A,B D.C,B,A Chapter 1: Computers and Digital Basics 3

4. 1 Question - 3  3. Why does it take much less space to store digital information than analog information? A.Digital devices only record pieces of sound waves, not full waves B.Digital devices record sounds at lower volumes than analog devices C.Digital devices decrease the amplitudes of sound waves, making them smaller D.Digital devices automatically eliminate all background noise from the sounds they record Chapter 1: Computers and Digital Basics 4

5. 1 Question - 4  4. How can you induce a magnetic field in a piece of iron? A.Run an electric current through it B.Expose it to sound waves C.Coat it with a substance that conducts electricity D.Encode digital information on it Chapter 1: Computers and Digital Basics 5

6. 1 Question - 5  5. In digital recording, what is the best synonym for "sampling”? A.Frequency B.Track C.Wave D.Piece Chapter 1: Computers and Digital Basics 6

7. 1 Question - 6  6. What can you infer about the best digital recordings? A.They are recorded with low sampling frequencies B.They are recorded with high sampling precision C.They are recorded with extremely powerful electromagnets D.They are recorded without using analog-to-digital converters Chapter 1: Computers and Digital Basics 7

8. 1 Question - 7  7. What might happen if your computer didn’t have a digital-to-analog converter? A.You wouldn't be able to record sound onto it B.You wouldn't be able to store sound on its hard drive C.You wouldn't be able to listen to digital recordings on it D.You wouldn't be able to insert discs or CDs into it Chapter 1: Computers and Digital Basics 8

9. 1 Question - 8  8. In the movie, Tim says that digital recording don’t deteriorate. What does this mean? A.They can't be deleted from a CD or hard drive B.They don't lose quality over time C.They have better sound quality than analog recordings D.They don't take up a lot of space Chapter 1: Computers and Digital Basics 9

10. 1 Question - 9  9.Which of the following is a device that stores analog information? Chapter 1: Computers and Digital Basics 10 A C DB

11. 1 Question - 10  10.Why do some people still like analog better than digital? A.Analog equipment takes up less space B.Analog equipment is cheaper C.Analog recordings have a "fuller" sound D.Analog recordings can be played louder Chapter 1: Computers and Digital Basics 11