Ict Flashcards
(33 cards)
1
Q
Difference between lossy and lossless
A
Lossy compression reduces file size by permanently removing original data while lossless reduces file size by removing unnecessary metadata
2
Q
Q1
A
C
3
Q
Q2
A
D
4
Q
Q3
A
A
5
Q
Q4
A
Analogue
Digital
Analogue to digital converter
Digital to analogue converter
6
Q
Q5 difference between data and information
A
Data is raw facts and figures with no context or meaning while information is data which has been processed and given meaning
7
Q
Q6
A
C
8
Q
Q7
A
D
9
Q
Q8
A
A
10
Q
Q11
A
A
11
Q
Yes/no
A
Boolean
12
Q
2000.4
A
Numeric
13
Q
A
A
Charcter
14
Q
True/false
A
Boolean
15
Q
Jones
A
String
16
Q
-23
A
Numeric
17
Q
BT99QE
A
String
18
Q
Male/female
A
Boolean
19
Q
Q12
A
D
20
Q
Q13
A
A
21
Q
JPEG
A
Joint Photographic Experts Group
22
Q
PNG
A
Portable Network Graphics
23
Q
GIF
A
Graphics Interchange Format
24
Q
Q15
A
B
25
Q16
A
26
Q17
D
27
22khz in hertz
22000hz
28
Q21
Resolution
29
Q22 and Q23
B
30
Q14 d
The hardware he is using doesn’t support the file format
31
Sample rate converting to digital
The lower the sample rate the less samples taken lowering audio quality therefore the higher the sample rate the better the audio quality
32
How bitmaps graphics stored
Store details about every individual pixel of the image each pixel could have a different colour
33
Vectors are stored as
Stored as mathematical objects such as lines curves and shapes
