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SC015 : Number system and how data represent

Total questions: 12

Worksheet time: 6mins

Name
Class
Date
1.

What is a bit ?

a)

Bit is the smallest unit of data the computer can process.

b)

a group of 8 bit.

2.

What is a byte?

a)

Bit is the smallest unit of data the computer can process.

b)

a group of 8 bit.

3.

Convert 1 0 0 1 1 1 1 12 into Decimal number.

a)

159

b)

158

c)

157

4.

Convert 8810 into binary number.

a)

10110112

b)

10110012

c)

10110002

5.

Convert 10111012 into hexadecimal number.

a)

51316

b)

5D16

c)

5C16

6.

convert ABC12316 into Binary number

a)

1010 1011 1100 0001 0010 00112

b)

1110 1011 1100 0001 0010 00112

c)

1011 1011 1100 0101 0010 00112

7.

 Convert 2GB into KiloByte.

a)

2 x 1024 KB

b)

2 / 1024 KB

c)

2x 1024 x 1024  KB

8.

1MB =

a)

1024 KB

b)

1 / 1024 /1024 KB

9.

1TB =

a)

1024 GB

b)

1 x 1024 x1024 x 1024 x 1024 B

c)

1 x 1024 x 1024 x 1024 KB

d)

1 x 1024 x 1024 MB

10.

30 GB into KB

a)

30 x 1024 x1024 KB

b)

30 x 1024 KB

c)

30 /1024 / 1024 KB

11.
a)

1024 MB

b)

1024 x 1024 MB

12.

how does a series of bits represent data?

a)

Computer represent data by using two unique binary digits 1 and 0 to represent the two states on and off.

b)

Computer represent data by using two unique binary digits 1 and 0.

c)

Computer represent data by using two unique binary digits that represent the two states on and off.