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Computer Science

Component 2

QuestionAnswer
What is abstraction? Removing unnecessary/irrelevant details to focus on the relevant details
What is decomposition? Breaking larger problems in to smaller problems. Smaller are easier to solve.
What is algorithmic thinking? Identifying the steps involved in breaking a problem down
What is the symbol for Start/End in a flow chart? Oval
What is the symbol for Input/Output in a flow chart? Parallelogram
What is the symbol for Process in a flow chart? Rectangle
What's pseudocode? Formal english (if 14 equals this then)
What are syntax errors? Errors with the code that stop it from working
What are logic errors? Errors in a code that do not terminate the code.
What's binary search? List in order, divides by two
What's bubble sort? Compares two values and puts in to correct order
What's insertion sort? Goes through each number and immediately puts each number in the right place
What's merge sort? Splits in to individuals, goes in to pairs, and then groups and keeps merging.
What is DIV? Ignores remainder
What is MOD? Only shows remainder
What is a function? A sub-program that returns a value
What is a procedure? A sub-program that does not return a value
What is authentication? Only allows authorised users to access information
What is verification? Checking data has been entered correctly
What is validation? Checks data is sensible
What is a type check? Checks a data type
How are the number of combinations found for a truth table? 2 to the power of the amount of inputs.
What does IDE stand for? Integrated Development Environment.
What is an IDE? A software program used to help programmers build software
What is the role of the translator (interpreter)? Allows the code to run, translates from written to machine code.
Give another feature of an IDE. Code editor, used to create code and auto indents
How do you start a file? myfile=open("hello.txt", "w'')
How do you write in a file? myfile.write("hello")
How do you close a file? myfile.close()
Created by: user-1956972
 

 



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