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GCSE Algorithms & Data types Flashcards | StudBud
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GCSE Algorithms & Data types
GCSE Algorithms & Data types
19 terms
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Computing concepts
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Answers
1
What is syntax?
A very long program
A set of rules about how to use a programming language
A way to plan algorithms in plain English
The structure used to create a flowchart
2
If we add the two real numbers 3.2 and 4.8, what is the result?
8
"8"
'8'
8.0
3
What is a boolean?
A data type that can hold true or false
A data type that holds whole numbers
A data type that holds decimal numbers
A data type that holds characters
4
What shape represents a decision in a flowchart?
Parallelogram
Rhombus
Diamond
Rectangle
5
What happens if you type a statement incorrectly into a programming language?
You feel a but silly
Nothing will happen
The program will correct it
You will get a syntax error
6
What is a variable?
Data that is produced by a computer, that cannot be changed
Data stored in a memory location, that can be changed
Data that is always changing
Data stored in a memory location, that cannot be changed
7
What is a declaration?
Giving a value to a variable
The process of assigning a name to a variable or constant
The process of assigning a variable only
The process of assigning a constant only
8
When is an expression used?
To debug a program
In a statement when working with values
To let people know how you feel
To create an algorithm
9
In terms of data values, what are characters?
Numbers
Letters, digits and punctuation marks
Letters
Letters and punctuation marks
10
What is pseudocode used for?
To plan algorithms using a specific programming language
To plan algorithms using plain English
To help the computer understand what you are trying to do
To program every piece of software
11
Which of the following statements is correct?
Fixed values are assigned by the program.
Fixed values are dependent on the user.
12
Which of the following does not generate data values that a program can use?
Hard copy from a printer
Mouse click
Microphone
Keyboard
13
What is an algorithm?
A hardware device that stores data
Step by step instructions to solve a task
A set of instructions
Software that analyses data
14
What is a global variable?
A variable that can be accessed by many programs
A variable that can only be accessed in a procedure / sub
A variable that can be accessed from any point in a program
15
What is a variable?
A number
The weather forecast
A data value that changes
A place in memory that holds a data value that changes
16
What is a string?
A data type that holds letters
A type of variable that hold characters
A variable datatype that holds a sequence of characters
A data type that holds true or false
17
In computing terms, what is the difference between the data values 2 and "2"?
The speech mark thingies?
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
18
Where are algorithms used?
Many different areas where instruction sets are needed
Algorithms are only used by computers
Algorithms are only used in planning
19
What shape represents a process in a flowchart?
Dodecahedron
Rectangle
Diamond
Oval
