Glossary

Question 1

Network

Answer 1

Computers linked together

Question 2

Workstation

Answer 2

Computer connected to the network

Question 3

Stand Alone Machine

Answer 3

Computer not connected to a network

Question 4

Desktop/laptop

Answer 4

PC sits on desk full sized keys/monitor

Question 5

World Wide Web

Answer 5

Interconnected web pages

Question 6

Internet

Answer 6

PC’s interconnected

Question 7

LAN

Answer 7

Network over a small area

Question 8

WAN

Answer 8

Wide area network

Question 9

Bandwidth

Answer 9

Amount of data possible through a cable/per second

Question 10

Decomposition

Answer 10

Breaking down a complex problem or system into smaller parts that are more manageable and easier to understand

Question 11

Abstraction

Answer 11

Representing essential features without including the background details or explanations

Question 12

Iteration

Answer 12

A process wherein a set of instructions or structures are repeated in a sequence a specified number of times or until a condition is met

Question 13

Selection

Answer 13

A question is asked and depending on the answer the program takes one of two courses of action after which the program moves on to the next event

Question 14

Pseudocode

Answer 14

A notation resembling a simplified programming language, used in program design

Question 15

Algorithm

Answer 15

A process or set of rules to be followed in calculations or other problem-solving operations, especially by a computer

Question 16

Variable

Answer 16

A storage address paired with an associated symbolic name, which contains some known or unknown quantity of information referred to as a value

Question 17

Constant

Answer 17

A value that cannot be altered by the program during normal execution, i.e., the value is constant

Question 18

Protocol

Answer 18

A system of rules that allow two or more entities of a communications system to transmit information via any kind of variation of a physical quantity

Question 19

Sequence

Answer 19

The order that commands are executed by a computer, allowing us to carry out tasks that have multiple steps

Question 20

Syntax

Answer 20

Refers to the spelling and grammar of a programming language

Question 21

Validation

Answer 21

An automatic computer check to ensure that the data entered is sensible and reasonable

Question 22

What is an algorithm?

Answer 22

An algorithm is a set of logical steps to be followed to perform a particular task

Question 23

What are the two methods to represent an algorithm?

Answer 23

Pseudocode and flowchart

Question 24

What statement is used for data entry?

Answer 24

INPUT statement

Question 25

What statement is used to display a variable?

Answer 25

PRINT statement

Question 26

What operator is used for assigning a variable?

Answer 26

← operator

Question 27

What are the two types of conditional statements?

Answer 27

If… then… statement and case statement

Question 28

What conditional statement is used for more than two conditions?

Answer 28

If… then… elseif … statement

Question 29

What is iteration?

Answer 29

Repeated execution of a set of lines is called iteration

Question 30

What type of programming statements are used for iterations?

Answer 30

Loop statements

Question 31

What are the types of loop statements?

Answer 31

For... to… next, repeat... until and while… do...

Question 32

What operator is used for ‘not equal to’ comparisons?

Answer 32

!= or <>

Question 33

What operator is used for grouping comparisons?

Answer 33

( )

Question 34

Algorithm

Answer 34

A set of logical steps to be followed to perform a particular task

Question 35

Conditional statements

Answer 35

Statements used when different actions are to be performed based on different values of user input

Question 36

Flowchart

Answer 36

A method of representing an algorithm in a pictorial form, depicting the steps and order to be followed to perform a task

Question 37

INPUT

Answer 37

A statement used for data entry

Question 38

Iteration

Answer 38

Repeated execution of a set of lines

Question 39

Loop statements

Answer 39

Statements that are used to execute a part of the algorithm multiple times

Question 40

Program

Answer 40

A set of instructions that performs a specific task during its execution

Question 41

PRINT

Answer 41

A statement used to display a string or a variable

Question 42

Pseudocode

Answer 42

A method of representing an algorithm using simple words and mathematical operators

Question 43

Software

Answer 43

Programs responsible for various operations of a computer and its peripherals

Question 44

Variable

Answer 44

A symbolic name used to represent a value which could be changed during execution

Question 45

What is computational thinking?

Answer 45

Computational thinking is a thought process involved in formulating a problem and expressing its solution in such a way that computers can effectively carry it out.

Question 46

Why is developing software a complex process?

Answer 46

Because software development involves innovative thinking processes and complex testing procedures.

Question 47

What are the components of computational thinking?

Answer 47

Abstraction Decomposition Algorithm design

Question 48

What are the steps involved in problem solving?

Answer 48

Understand the problem Construct a plan to solve the problem Apply the plan Check for errors and look for improvements in the current plan

Question 49

What steps are involved in understanding a problem?

Answer 49

We need all data to understand the problem. Then, we must check whether the problem is solvable. If it is solvable, a complex problem can be broken down into simpler modules.

Question 50

What are the characteristics of a proper solution?

Answer 50

Error-free, efficient and reusable.

Question 51

What is abstraction?

Answer 51

A component of computational thinking where certain non-essential characteristics of objects or systems are removed so that it is reduced to a simple set of characteristics.

Question 52

List some examples of abstraction

Answer 52

Variables and functions in programming. Layering in computer networks.

Question 53

What is decomposition?

Answer 53

A component of computational thinking where a large problem is broken down into smaller chunks that can then be solved using computing.

Question 54

What is pattern recognition?

Answer 54

A concept where similar problems are solved by reusing solutions.

Question 55

What are the advantages of using pattern recognition?

Answer 55

Saves effort and time.

Question 56

What is an algorithm?

Answer 56

A problem is broken into a series of logical steps called an algorithm.

Question 57

In what forms, is an algorithm represented?

Answer 57

Flowchart and pseudocode

Question 58

What is a flowchart?

Answer 58

A method of representing algorithms in pictorial form, depicting the steps and order to be followed to perform a task.

Question 59

What is pseudocode?

Answer 59

A method of representing an algorithm using simple words and mathematical operators.

Question 60

What is the function of a MOD operator?

Answer 60

A MOD operator is used to find remainder of a division operation.