What is a byte?
4 bits
8 bits
1,000 bits
What is sample rate?
The time interval when a sound wave is measured, recorded and stored as a binary value
Colour picked from a photograph
The number of pixels in an image
What is denary 55 in binary?
10010011
00110111
00110110
What is denary 55 in hexadecimal?
37
58
42
What is hexadecimal 22 in binary?
00100011
00100010
00100110
In 8-bit binary, what is 00001111 + 00000010?
00001111
00011101
00010001
What is the denary value of the two's complement binary number 10001101?
-115
-45
141
What is the purpose of a binary shift?
To multiply/divide binary numbers
To add/subtract binary numbers
To convert binary numbers to hexadecimal
What term describes the type of compression that removes some data to make the file smaller?
Lossless compression
Lossy compression
Run length encoding
What is metadata?
Data about data
Colour data
Sound data