Extra Bits Flashcards
(11 cards)
How many bits and bytes does 8-bit sound use? How many for 16-bit?
8-bit uses eight bits (or one byte)
16-bit uses sixteen bits (two bytes)
How is sampling rate measured?
In Hertz
How many Hertz, kHz, do modern sound recordings use?
44.1 kHz
What is the average frame rate for digital videos?
30 fps
How many bytes is in 8-bit color images? How many for 24-bit?
One byte for each pixel
For 24-bit, three bytes for each pixel
How do pixels work in RGB displays?
A pixel will display different colors depending on the brightness of each light
What happens when a files is compressed using a lossless compression algorithm?
When decompressed, will be exactly the same as the file before compression, bit for bit
What is lossy compression usually used for?
Images, videos, and audio files
What are the advantages and disadvantages of a desktop?
Advantages
- Modular
- Easy to repair and upgrade
- More powerful
Disadvantages
- Not mobile
- Requires AC power
What are the advantages and disadvantages of notebooks/laptops?
Advantages
- Lighter, more compact
- Int. mouse, keyboard
- Wireless networking
- Battery power
Disadvantages
- Difficult to repair
- More expensive
- Less computing power
What are the advantages and disadvantages of smartphones?
Advantages
- Best mobility
- Integrated hardware
- Inexpensive apps
- Less expensive
- Touch screen
Disadvantages
- Difficult to repair/almost impossible to upgrade
- Sealed battery
- Low productivity