What is a byte?
4 bits
8 bits
1,000 bits
What is sampling?
Sound waves measured at regular intervals
Colour picked from a photograph
Sound represented digitally
What is denary 55 in 8-bit binary?
10010011
00110111
00110110
What is denary 55 in hexadecimal?
37
58
42
What is hex 22 in 8-bit binary?
00100011
00100010
00100110
In 8-bit binary, what is 00001111 + 00000010?
00001111
00011101
00010001
In 8-bit binary, what is 11111011 + 00000101?
11111111
00000000
00000000 and generates an overflow error
What is the purpose of a binary shift?
To multiply/divide binary numbers
To add/subtract binary numbers
To convert binary numbers to hexadecimal
Which type of compression would be best for storing a text file?
Lossy
Both
Lossless
What is metadata?
Data about data
Colour data
Sound data