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Algorithms & Data types (Year 10 Consolidation) Flashcards | StudBud
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Algorithms & Data types (Year 10 Consolidation)
Algorithms & Data types (Year 10 Consolidation)
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Computing concepts
Flashcards
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Questions
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Answers
1
What is an algorithm?
A hardware device that stores data
Step by step instructions to solve a task
Software that analyses data
A set of instructions
2
What is pseudocode used for?
To help the computer understand what you are trying to do
To plan algorithms using a specific programming language
To program every piece of software
To plan algorithms using plain English
3
What is a string?
A data type that holds letters
A data type that holds true or false
A variable datatype that holds a sequence of characters
A type of variable that hold characters
4
What is a variable?
Data that is produced by a computer, that cannot be changed
Data stored in a memory location, that cannot be changed
Data stored in a memory location, that can be changed
Data that is always changing
5
If we add the two real numbers 3.2 and 4.8, what is the result?
"8"
8
8.0
'8'
6
What is a variable?
The actual data value that changes
A number
The weather forecast
A place in memory that holds a data value that changes
7
What is a boolean?
A data type that holds whole numbers
A data type that holds characters
A data type that holds decimal numbers
A data type that can hold true or false
8
What is syntax?
A way to plan algorithms in plain English
A set of rules about how to use a programming language
A very long program
The structure used to create a flowchart
9
Which of the following statements is correct?
Fixed values (constants) are dependent on the user.
Fixed values (constants) are assigned by the program.
10
What is a global variable?
A variable that can be accessed by many programs
A variable that can be accessed from any point in a program
A variable that can only be accessed in a procedure / sub
11
When is an expression used?
In a statement when working with values
To debug a program
To let people know how you feel
To create an algorithm
12
In computing terms, what is the difference between the data values 2 and "2"?
There is no difference, they are both characters
2 is an integer, "2" is a boolean
2 is an integer, "2" is a character or string
The speech mark thingies?
13
In terms of data values, what are characters?
Letters
Letters, digits and punctuation marks
Numbers
Letters and punctuation marks
14
Where are algorithms used?
Algorithms are only used in planning
Many different areas where instruction sets are needed
Algorithms are only used by computers
15
What happens if you type a statement incorrectly into a programming language?
You feel a but silly
The program will correct it
Nothing will happen
You will get a syntax error
16
What is a declaration?
The process of assigning a constant only
The process of assigning a variable only
Giving a value to a variable
The process of assigning a name to a variable or constant
