Computing

Question 1

What is a variable?

Answer 1

A value that can be changed by the program that it’s run by

Question 2

What is an operator?

Answer 2

A character which determines what action will be performed.

Question 3

What is an infinite loop

Answer 3

A loop that never stops and often causes an error

Question 4

What are the 5 data types and what are they?

Answer 4

Integer - whole number
Float - decimal number
Character - a single alphanumeric number
String - One or more alphanumeric numbers
Boolean - TRUE / FALSE

Question 5

What is a programming statement?

Answer 5

A singular instruction such as ‘print()’

Question 6

What is machine code

Answer 6

1s and 0s (binary), which programming languages are translated to

Question 7

What is a syntax error?

Answer 7

A bug where the rules of the language have not been followed

Question 8

What is an AND gate?

Answer 8

When the 2 inputs are put together (binary)
0+0=0
0+1=0
1+0=0
1+1=1

Question 9

What is an OR gate?

Answer 9

When the higher of the 2 inputs are chosen
0+0=0
0+1=1
1+0=1
1+1=1

Question 10

What is a NOT gate?

Answer 10

When there’s 1 input and the opposite comes out
0=1
1=0

Question 11

What is a network?

Answer 11

2 or more computers connected together using wi-fi or cables

Question 12

What is a server?

Answer 12

A powerful computer which acts as a central hub for a network. Can be used for file sharing, emails, etc.

Question 13

What is a client

Answer 13

A singular computer which is connected to a network

Question 14

What do you need to join a network and how can you connect?

Answer 14

You need a network interface card to join and you can connect with either a wireless access point if it’s a wireless network or Ethernet if it’s a wired network

Question 15

What is used to connect devices together in the most suitable route for sending data?

Answer 15

The router

Question 16

What records which computers are connected to which ports?

Answer 16

The switch

Question 17

What does LAN stand for and what does it do?

Answer 17

Local Area Network, it connects devices in a single site like a school or a library usually with cables

Question 18

What does WAN stand for and what does it do?

Answer 18

Wide Area Network, it connects devices over a large geographical area like ATM machines and company branches usually with satellite connection

Question 19

What is a network topology?

Answer 19

How a network is configured. E.g. bus and star toplogy

Question 20

What is an IP address

Answer 20

A protocol which identifies a computer on a network

Question 21

What is computational thinking?

Answer 21

Thinking logically like a computer to make a problem easier to solve

Question 22

What is abstraction?

Answer 22

Separating details that are less important or unnecessary

Question 23

What is decomposition?

Answer 23

Breaking down a system into smaller parts which are easier to understand

Question 24

What is pattern recognition?

Answer 24

Finding similarities and patterns to solve complex problems more efficiently

Question 25

What is algorithmic thinking?

Answer 25

Making a logical sequence to carry out a task

Question 26

What is the difference between programming and computational thinking?

Answer 26

Programming tells a computer what to do and computational thinking allows us to work out what to tell a computer to do

Question 27

What are the Boolean operators?

Answer 27

AND
OR
NOT

Question 28

What values does a Boolean expression have?

Answer 28

True or False