wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

How Computers Work

Total questions: 23

Worksheet time: 22mins

Name
Class
Date
1.

What base is the binary system in?

a)

8

b)

16

c)

10

d)

2

2.

How many bits are a nibble?

a)

1

b)

2

c)

4

d)

8

e)

16

3.

32 nibbles is how many bytes?

a)

1

b)

2

c)

4

d)

8

e)

16

4.

How many significant digits are there in 00457?

a)

2

b)

3

c)

5

d)

18

5.

Is this binary number even or odd (01100011)?

a)

Even

b)

Odd

6.

What decimal system used by humans to understand binary?

a)

Ascii

b)

Unicode

c)

Binary

d)

Hexadecimal

7.

Unicode has enough space to encode/decode characters for all languages?

a)

True

b)

False

8.

What base is the Hexadecimal system use?

a)

2

b)

8

c)

10

d)

16

9.

True or False: Computers encode each signal as either a 1 or a 0?

a)

True

b)

False

10.

ASCII was a ___ bit code, while Unicode used a ___bit encoding system.

a)

4, 7

b)

8, 16

c)

5, 10

d)

7, 16

11.

True or False: Unicode, which was used in the early days of computers, and ASCII, which is widely used today.

a)

True

b)

False

12.

How many bits are in 32 bytes?

a)

32

b)

40

c)

64

d)

128

e)

256

13.

The smallest piece of digital information is called what?

a)

Byte

b)

Bit

c)

Nibble

d)

Fraction

14.

How many nibbles are in 12 Bytes?

a)

2

b)

6

c)

12

d)

24

15.

What is the sum of 10 +12 in Hexadecimal

a)

22

b)

x22

c)

16

d)

x16

16.

How many GB is 32400 MB?

a)

3.24 GB

b)

32.4 GB

c)

324 GB

d)

32400 GB

17.

Megabytes is approximately how many bytes?

a)

1,000 bytes

b)

100,000 bytes

c)

1 Million Bytes

d)

1 Billion Bytes

18.

True or False: Computers encode each signal as either a 1 or a 0.

a)

True

b)

False

19.

What is the Ascii value of 63? (ASCII chart provided)

a)

¢

b)

c)

?

d)

20.

What character is encoded in this binary # 01011010?

a)

z

b)

x

c)

X

d)

Z

21.

What is the Hexadecimal representation for 1010 0111?

a)

107

b)

A6

c)

86

d)

A7

22.

Which is the fastest processing speed ?

a)

6.6 Kilohertz

b)

4.7 Megahertz

c)

1.5 Gigahertz

23.

What is the mashup of the words Binary and Digit?

a)

Big

b)

Bigit

c)

Bit

d)

Bing