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Binary

Total questions: 15

Worksheet time: 9mins

Name
Class
Date
1.

Signed Integers Represent Which Type of Binary Values

a)

Any Positive Value between 0-255

b)

Any Negative Value between -128 and 0

c)

Any Value between Negative (-128) and Positive +127

d)

A Signed Integer Means that the Binary value is always 0

2.

What is the range of an unsigned 8-Bit Binary intergers?

a)

0-255 (256 Values altogether)

b)

0-128

c)

Between -128 and 0

d)

Between 0 and 128

3.

What are the disadvantages of using Sign and Magnitude to represent Negative Binary Numbers? (Select Two)

a)

It doesn't represent negative numbers accurately

b)

It takes up an entire digit to represent whether the number is -negative or + positive

c)

There is a possibility of having two 0's

d)

It takes longer for the computer to identify a negative number in two's complement

4.

Which of the following are valid variable names in Python?

a)

8HouseNumber

b)

houseNumber = 288

c)

house Number = 288

d)

house_number = 288

5.
Convert 128 to binary
a)
10000000
b)
01111110
c)
10000001
d)
11001100
6.
If a binary number ends with a 1, it must be...
a)
An odd number
b)
An even number
c)
A prime number
d)
The number 12
7.
What is the denary number system?
a)
It counts the number of dens
b)
Our usual base 10 number system
c)
A special number system for computers
d)
Den Ary's number system
8.

What is the point of binary?

a)

It represents how computers interpret electrical signals

b)

It allows us to create files and folders in Windows

c)

It is used to create a user-interface

d)

Because it describes a star network topology

9.
Computers can only understand 0s and 1s.
a)
True
b)
False
10.
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.
11.
A group of 8 bits is known as a gigabyte.
a)
True
b)
False
12.
What is 0101 + 1010?
HINT:
1 + 0 = 1
0 + 1 = 1
1 + 1 = 10
a)
1111
b)
2020
c)
146.6
d)
?
13.
ASCII is:
a)
a numerical system that has 2 rather than 10 as a base.
b)
the most common format for text files in computers and on the Internet
14.
ASCII was developed in what decade?
a)
1950s
b)
1960s
c)
1970s
d)
1940s
15.
Calculate the binary addition:
1111
1011
Use binary addition rules + whiteboards!
a)
110101
b)
11110
c)
11011
d)
11010