8.2 Programming Flashcards
What is an algorithm?
A set of instructions the computer follows in sequence?
What is a sequence?
The order the program runs in.
What is a variable?
A location in memory that stores one piece of data. It can change as the program runs.
What is iteration?
When a block of code repeats/loops?
What are the two iteration loops used in Python
A for loop is count controlled, whereas a while loop is condition controlled.
Why is iteration used in a program?
To make the program more efficient, e.g. less lines of code so the program runs faster.
What does selection mean?
The user has a choice and the program has different routes to follow based on the choice
What are the key terms you would expect to see when reading a selection statement?
If/elif/else
What is the purpose of indentation
The code belongs to the specific selection statement
Write a print statement
print(‘A print statement’)
Write an input statement for to user entering their name
name = input(‘Enter your name: ‘)
How do the four types of malware get into the computer system:
Virus, worm, trojan and ransomware?
Virus - attaches
Worm - duplicates
Trojan - pretends
Ransomware - locks
What is a list?
A location in memory that stores multiple elements under one name
What is the difference between a variable and a list?
A variable can only store one element whereas a list stores multiple elements.
How is a list defined in Python?
listName = [] (square brackets)
What is computational thinking?
Computational thinking is about breaking a big problem into smaller manageable problems: Abstraction - selecting the relevant information, Decomposition - breaking it down into steps, Algorithmic thinking - writing short programs for each step.
What is a structure diagram?
A structure diagram is a decomposition tool that shows visually the different steps in solving the problem.
When have I come across computational thinking before?
Maths - BIDMAS: Brackets, Indices , Division, Multiplication, Addition and Subtraction.
What is Python?
Python is a text-based programming language, which is close to the English language and is translated in order for a computer to understand.
What is an algorithm?
An algorithm is a set of instructions that a computer needs to follow in order/sequence.
What are de Facto standards in programming?
De Facto standards are the expected standard of presentation when writing programs, including title-author-date, this program is designed to… and #comments throughout code.
What is an array?
An array is another word for a list. An array/list store multiple pieces of data in one location.
What is a variable?
A variable stores one piece of data, and can change at the program runs?
How is an array shown in Python?
With a name for the array and square brackets, e.g. studentList = [ ]
What is iteration?
When a block code is repeated either until a condition is met or for a certain number of times.
What key terms would you expect to see when reading iterative statements?
For loop or while loop
What is the purpose of indentation
Repeat the block of code with the iterative statement
What is computational thinking?
Computational thinking is where you take a big problem and break it down into steps and work through logically.
Write a print statement
print(‘A print statement’)
Write an input statement for to user entering their name
name = input(‘Enter your name: ‘)
What does selection mean?
The user has a choice and the program has different routes to follow based on the choice
What are the key terms you would expect to see when reading a selection statement?
If/elif/else
What is the purpose of indentation?
The code belongs to the specific selection statement
