Data Representation Flashcards
1
Q
What is derived from data
A
Information
2
Q
What is data
A
Raw facts and figures without meaning
3
Q
What is a character
A
A letter, digit or space
4
Q
How many bits is the ASCII
A
7-bit
5
Q
What is the extension of ASCII called
A
Unicode
6
Q
How is an instruction read by the computer
A
Using an opcode and an operand
7
Q
How is sound converted to a digital signal
A
Sampling
8
Q
What is the number of times that the sound level is sampled per second
A
Sampling frequency
9
Q
What are bitmap images
A
An array of pixels to show an image
10
Q
Examples of metadata
A
Height, width, time take and colour depth
11
Q
What happens without metadata
A
The image is rendered incorrectly