Extra Bits

Question 1

How many bits and bytes does 8-bit sound use? How many for 16-bit?

Answer 1

8-bit uses eight bits (or one byte)

16-bit uses sixteen bits (two bytes)

Question 2

How is sampling rate measured?

Answer 2

In Hertz

Question 3

How many Hertz, kHz, do modern sound recordings use?

Answer 3

44.1 kHz

Question 4

What is the average frame rate for digital videos?

Answer 4

30 fps

Question 5

How many bytes is in 8-bit color images? How many for 24-bit?

Answer 5

One byte for each pixel

For 24-bit, three bytes for each pixel

Question 6

How do pixels work in RGB displays?

Answer 6

A pixel will display different colors depending on the brightness of each light

Question 7

What happens when a files is compressed using a lossless compression algorithm?

Answer 7

When decompressed, will be exactly the same as the file before compression, bit for bit

Question 8

What is lossy compression usually used for?

Answer 8

Images, videos, and audio files

Question 9

What are the advantages and disadvantages of a desktop?

Answer 9

Advantages
- Modular
- Easy to repair and upgrade
- More powerful

Disadvantages
- Not mobile
- Requires AC power

Question 10

What are the advantages and disadvantages of notebooks/laptops?

Answer 10

Advantages
- Lighter, more compact
- Int. mouse, keyboard
- Wireless networking
- Battery power

Disadvantages
- Difficult to repair
- More expensive
- Less computing power

Question 11

What are the advantages and disadvantages of smartphones?

Answer 11

Advantages
- Best mobility
- Integrated hardware
- Inexpensive apps
- Less expensive
- Touch screen

Disadvantages
- Difficult to repair/almost impossible to upgrade
- Sealed battery
- Low productivity