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Binary Code

Total questions: 15

Worksheet time: 18mins

Name
Class
Date
1.

What two digits make up the binary number system?

a)

1 and 10

b)

0 and 1

c)

1 and 9

d)

2 and 4

2.

Each binary digit is called a:

a)

Byte

b)

Bit

c)

Code

d)

Pixel

3.

How many bits are in one byte?

a)

4

b)

8

c)

10

d)

16

4.

Binary is called a base-2 system because:

a)

It has two types of computers

b)

It uses two digits: 0 and 1

c)

It multiplies by twos

d)

It skips every other number

5.

Which of the following binary numbers equals the decimal number 10?

a)

1000

b)

1010

c)

1100

d)

1111

6.

Convert the binary number 1101 to decimal.

4 lines
7.

Convert the decimal number 12 to binary.

4 lines
8.

Each place in a binary number represents a power of 2. Write the values for the first five places (from right to left): 1, ___, ___, ___, ___.

(a)  

9.

What exponent of 2 gives us the value 32? 2(a)<spanclass=2^ (a) <span class= = 32

10.

In your own words, explain why computers use binary code instead of regular numbers or letters.

4 lines
11.

What does a binary code allow your computer to do?

a)

Turn light switches on and off

b)

Count to 1

c)

Translates data (images, sounds, video) into bits so the computer knows what to do.

12.

Why do computers use the binary instead of the decimal number system?

a)

Because it’s easier to process.

b)

Binary forces the computer to work harder

c)

They can't count to 10

13.

ASCII stands for American Standard College of Inland Island.

a)

True

b)

False

14.

Information stored or processed by a computer.

a)

Code

b)

Language

c)

Data

d)

Pattern

15.

Break the Code: 01000010 01001001 01001110 01000001 01010010 01011001 _____ _____ _____ _____ _R_____ _____

4 lines