2.1 - Elements of Computational Thinking

Question 1

What is abstraction?

Answer 1

Simplifying a problem by only taking into consideration the necessary details required to obtain a solution, leaving a representation without any unnecessary details.

Question 2

What is caching?

Answer 2

The temporary storage of data by the system in cache or memory for the benefit of faster retrieval if it is needed again in future.

Question 3

What are inputs?

Answer 3

Any information relevant to the problem that is required by the system for processing according to an algorithm.

Question 4

What are outputs?

Answer 4

The result returned by a system for a given input after running the entire process or part of a process.

Question 5

What are preconditions?

Answer 5

A prerequisite or state of a system and its surroundings required to run a use case to return a valid solution.

Question 6

What are reusable program concepts?

Answer 6

Components that have already been written, debugged and tested that can be transplanted into new systems to save development time in project completion.

Question 7

What are components of a problem?

Answer 7

The smaller, simpler series of tasks and sub-procedures a problem can be broken down into to be completed modularly.

Question 8

What are flowcharts?

Answer 8

A diagrammatic representation of the flow of a program that includes all the points where a decision needs to be taken in order to obtain a solution.

Question 9

What are logical conditions?

Answer 9

Conditions which may depend on one or more variables used to determine the next step whenever a system has to make a decision.

Question 10

What is concurrent processing?

Answer 10

Processing where the system appears to perform multiple tasks simultaneously.