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WorksheetsData Representation 1
Total questions: 28
Worksheet time: 26mins
Name
Class
Date
1.
Convert 128 to binary
a)
10000000
b)
01111110
c)
10000001
d)
11001100
2.
Convert 65 to binary
a)
01100001
b)
00100001
c)
01000001
d)
00100101
3.
Convert 254 to binary
a)
11110000
b)
11111100
c)
11111111
d)
11111110
4.
Convert 37 to binary
a)
00100101
b)
00100011
c)
00100111
d)
01000101
5.
Convert 196 to binary
a)
11000110
b)
11100100
c)
11000100
d)
11010100
6.
Convert 00010001 to decimal
a)
17
b)
27
c)
37
d)
47
7.
Convert 11001100 to decimal
a)
224
b)
134
c)
104
d)
204
8.
Convert 11111111 to decimal
a)
255
b)
245
c)
235
d)
225
9.
Convert 00100100 to decimal
a)
26
b)
36
c)
46
d)
56
10.
Convert 01000100 to decimal
a)
58
b)
68
c)
78
d)
88
11.
Binary is base
a)
16
b)
10
c)
2
d)
32
12.
Binary is made up of which numbers
a)
3 and 4
b)
2 and 3
c)
1 and 2
d)
0 and 1
13.
Decimal numbers are base
a)
2
b)
4
c)
8
d)
10
14.
The binary chart we use to convert decimal to binary is
a)
16 14 12 10 8 4 2 1
b)
100 80 70 60 50 40 30 20 10
c)
128 64 32 16 8 4 2 1
d)
512 256 128 64 32 16 8 1
15.
A bit is
a)
a numerical label assigned to each device.
b)
the smallest unit of data in a computer.
c)
a keyboarding term for typing.
d)
is a numeral system made up of 16 symbols.
16.
A byte equals how many bits?
a)
2
b)
4
c)
8
d)
16
17.
ASCII is
a)
the term given to printed files from the computer.
b)
an electronic device for storing and processing data.
c)
computer code
for representing
alphanumeric characters
for representing
alphanumeric characters
d)
is a numeral system made up of 16 symbols.
18.
What is the hexadecimal 3A in decimal?
a)
48
b)
58
c)
56
d)
46
19.
What is the hexadecimal 2D in binary?
a)
00011101
b)
00101110
c)
00101101
d)
00101011
20.
Convert the hexadecimal nuber B2 to binary
a)
100011
b)
11011
c)
10110010
d)
10010010
21.
Convert the decimal number 20 to hexadecimal
a)
14
b)
11
c)
1B
d)
B0
22.
Convert the hexadecimal number 2C to decimal
a)
3A
b)
34
c)
44
d)
4A
23.
What is a nibble?
a)
2 bits
b)
4 bits
c)
8 bits
d)
6 bits
24.
What is a byte?
a)
8 bits
b)
4 bits
c)
2 bits
d)
1 bit
25.
Why do programmers use hexadecimal?
a)
To avoid very large and confusing binary numbers
b)
To prevent the computer decoding binary numbers
c)
To avoid small binary numbers
d)
Because they felt that binary was too simple.
26.
What is the hexadecimal number FF in denary?
a)
255
b)
256
c)
254
d)
257
27.
The biggest number you can make with 4 binary digits is _____
a)
15
b)
14
c)
13
d)
16
28.
What unit is usually given to a music track?
a)
kilobytes
b)
gigabytes
c)
teraybtes
d)
megabytes
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