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Computer Pioneers - Charles Babbage & others

Total questions: 20

Worksheet time: 11mins

Name
Class
Date
1.
Charles Babbage designed the Difference Engine and the Analytical Engine. What were these?
a)
Mechanical Computers
b)
Thermometers
c)
Artillery pieces
d)
Rulers
2.
The Difference engine was  designed in 1822.
a)
True
b)
False
3.

Define the term computational thinking

a)

Using a computer

b)

Developing an algorithm to solve a problem

c)

Making a computer use arti cial intelligence

d)

Google is computational thinking

4.

Which sorting algorithm is described by: moving through a list repeatedly, swapping elements that are in the wrong order

a)

Merge

b)

Bubble

c)

Insertion

d)

None of the above

5.

The following list is to be sorted using a bubble sort:

12, 6, 8, 1, 3

What will the list look like after the first iteration through the list

a)

6 8 1 3 12

b)

6 12 1 8 3

c)

1 3 6 8 12

d)

6 8 1 12 3

6.

Which sorting algorithm needs to go through the list repeatedly?

a)

Merge

b)

Bubble

c)

Insertion

d)

None of them do

7.

What is the name of this logic gate?

a)

AND gate

b)

NOT gate

c)

OR gate

d)

NOR gate

8.

What is the name of this logic gate?

a)

AND gate

b)

NOT gate

c)

OR gate

d)

NOR gate

9.

What is the name of this logic gate?

a)

AND gate

b)

NOT gate

c)

OR gate

d)

NOR gate

10.
HTML stands for...
a)
Hyper Text Markup Language
b)
High Tech Marking Language
c)
High Tech Modem Language
d)
Hyper Tech Markup Lexicon
11.

<a> tags

a)

Defines an article tag

b)

Defines an HTML link

c)

Defines the link destination

d)

Defines the area

12.
What machine was used during WWII to encrypt and decrypt German messages?
a)
Enigma
b)
Atbash
c)
Secret
d)
Puzzler
13.

In Cryptography, original message, before being transformed, is called

a)

Simple Text

b)

Plain Text

c)

Cipher Text

d)

Filled Text

14.

An encryption algorithm transforms plain text into:

a)

Cipher text

b)

Simple Text

c)

Empty Text

d)

Plain Text

15.
What is encryption?
a)
When you put data / text into code making it difficult to read or understand.
b)
A secret or disguised way of writing; a code.
c)
A formal language designed to communicate instructions to a machine
d)
What is put in, taken in, or operated on by any process or system.
16.
Where did Alan Turing work during WWII?
a)
Edinburgh
b)
Hyde Park
c)
Bromsgrove
d)
Bletchley Park
17.
Google, Bing and Yahoo are all examples of what?
a)
Web browsers
b)
Search engines
c)
Web engines
d)
Text editors
18.
Google Chrome, Mozilla Firefox and Microsoft Edge are all examples of what?
a)
Search engines
b)
Websites
c)
Web Browsers
d)
Text editors
19.

For which logic gate is this the truth table?

a)

AND

b)

NAND

c)

NOT

d)

OR

20.

For which logic gate is this the truth table?

a)

AND

b)

NAND

c)

NOT

d)

OR