Year 9 Topic 2 Flashcards
1
Q
How do computers convert sound input into a digital signal?
A
Analogue to Digital conversion (ADC)
2
Q
Why do computers use binary?
A
It’s easier for them to understand two states - on and off.
3
Q
What is the difference between binary and denary?
A
Binary uses the Base 2 system, and denary uses the Base 10 system.
4
Q
What is A7 in binary?
A
1010 0111
5
Q
What is 1011 0011 in Hex?
A
B3
6
Q
01
+ 11
——-
?
A
? = 100
7
Q
Hexadecimal refers to what number system?
A
Base 16.
8
Q
What is 01010111 in denary?
A
87.
9
Q
What is 131 in binary?
A
10000011
10
Q
What is the difference between a Rastergraphic and a Vectorgraphic?
A
Rastergraphics are made up of pixels and Vectorgraphics are made out of lines with a start and end and other shapes rather than pixels.
