WorksheetsProgress Test 1 - Year 10
Total questions: 25
Worksheet time: 17mins
Computers store all data using...
Binary
Hexadecimal
Denary
Octal
A byte is made up of how many binary digits?
8
4
6
12
Convert 10110 to decimal.
12
22
26
122
How many bytes make a kilobyte?
100
1024
1 million
256
Add 100101 + 100010.
01001111
00110011
01000111
01100011
Add 110111 + 111010.
01110101
01100011
01110011
01110001
Add 1001 + 1011
10100
010101
011100
01010011
Add 1111 + 1011
110101
11110
11011
11010
Add: 01111111 + 01111101
11111101
11111100
11011100
11011100
Add 11010010 + 00000110
11010000
10110100
11100001
11011000
ADD 00000111 + 00001100 =
10011
110011
10010011
10012
Hexadecimal is used because...
It takes up less space
It is easier for computers to process
It is easier for people to read
It is quicker to write data in
What is the largest 2-digit hexadecimal value?
FF
99
9F
F9
Convert -6 into binary using twos complement
0110
1010
1110
0000
Convert -8 into binary using twos complement
1000
1110
0111
1001
Convert -7 into binary using twos complement
1001
0111
0000
1000
What is this UNSIGNED binary number in denary?
1110
14
-6
-14
6
What is this SIGNED binary number in denary?
1100
4
11
-4
12
What is this SIGNED binary number in denary?
0101
-5
5
13
12
How many digits can the decimal number system use?
2
4
10
100
