1.2 Memory + Storage - Data Storage & Compression Flashcards
1
Q
What is sound sampling?
A
- The amplitude of the wave
(measured in set intervals)
2
Q
How does changing the bit depth affect the sound file?
A
- If the bit depth increases, the resolution increases.
- This means the file size increases.
3
Q
What is a bit?
A
Smallest unit of data a computer can store, represented as 0 or 1.
4
Q
A byte represents a single ___.
A
character
5
Q
DVD-RW is an example of an ___ storage device.
A
optical
6
Q
What is a character set?
A
- A defined list of characters that is understood by a computer.
7
Q
A bitmap image is made up of ___.
A
pixels.
8
Q
A vector image is created from mathematical ___ and p___.
A
mathematical equations and points.
9
Q
Vector images are infinitely ___.
A
scalable.
10
Q
Describe what happens when the computer converts some music into a file. (2)
A
- Height of the wave is sampled.
- Stored as binary.
11
Q
How many bits does ASCII have?
A
256 bits.
