Data Representation Flashcards
1
Q
What is binary?
A
It is a base number system that uses the numbers = 1 and 0
2
Q
What is decimal?
A
It is the base system of 10
3
Q
What is hexadecimal?
A
It is a base system of 1 and 16
4
Q
What is a pixel?
A
It is the basic unit of programmable colour on a computer image
5
Q
What is resolution?
A
Resolution- Number of pixel presented on a display
6
Q
What is ASCII?
A
American Standard Code for International Interchange
7
Q
What is lossy compression?
A
It makes the file smaller and data is lost
8
Q
What is lossless compression?
A
It makes the file smaller but doesn’t lose any data
9
Q
What is metadata?
A
Extra information of a file
10
Q
What is a bitmap
A
A representation in which an item corresponds in one or more bits
11
Q
What is colour (bit) depth?
A
It is the number of bits used to represent an image
