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AP Computer Science Principles Vocabulary 100% Correct
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AP Computer Science Principles Vocabulary 100% Correct What is algorithm in computer science? An algorithm is a step-by-step procedure or formula for solving a problem or performing a task. It is a set of instructions designed to be followed in a specific order to achieve a desired outcom...

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  • August 28, 2024
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  • 2024/2025
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AP Computer Science Principles
Vocabulary 100% Correct
What is algorithm in computer science?




✔✔ An algorithm is a step-by-step procedure or formula for solving a problem or performing a

task. It is a set of instructions designed to be followed in a specific order to achieve a desired

outcome.




Define abstraction and its role in programming.




✔✔ Abstraction is the process of simplifying complex systems by focusing on the essential

features and ignoring the details. In programming, it helps manage complexity by allowing

developers to use and understand higher-level constructs without needing to know the underlying

details.




What does decomposition mean in the context of programming?




1

,✔✔ Decomposition refers to breaking down a complex problem or system into smaller, more

manageable parts. It helps in solving problems by addressing each component individually,

making it easier to understand, develop, and test.




Explain the concept of iteration and its importance in programming.




✔✔ Iteration is the process of repeating a set of instructions or statements a certain number of

times or until a condition is met. It is important because it allows for the automation of repetitive

tasks and processing of multiple data elements efficiently.




What is a variable, and what is its purpose in a program?




✔✔ A variable is a named storage location in a program that holds data which can be used and

modified during execution. Its purpose is to store information that can be referenced and changed

as needed throughout the program.




Define data type and give examples of common data types in programming.




2

,✔✔ A data type defines the kind of data that a variable can hold, such as integers, floating-point

numbers, characters, or boolean values. Common data types include int, float, char, and boolean.




What is debugging, and why is it crucial in software development?




✔✔ Debugging is the process of identifying, analyzing, and fixing errors or bugs in a program. It

is crucial in software development because it ensures that the code runs correctly and efficiently,

helping to maintain the software’s reliability and performance.




Describe the purpose of control structures in programming.




✔✔ Control structures are constructs used to manage the flow of execution in a program. They

include conditional statements (if, else), loops (for, while), and branching mechanisms, which

allow the program to make decisions and repeat actions based on conditions.




What is data abstraction, and how does it benefit program design?




3

, ✔✔ Data abstraction involves defining data structures that hide the implementation details and

expose only necessary features. It benefits program design by simplifying interaction with

complex data, improving code readability, and reducing the likelihood of errors.




Explain the term parameter in the context of functions.




✔✔ A parameter is a variable used in a function to receive input values from the caller. It allows

the function to operate on different inputs and produce different outputs based on the values

provided.




What is function decomposition, and how does it aid in program development?




✔✔ Function decomposition is the process of breaking down a complex function into smaller,

simpler functions. It aids in program development by making the code more modular, easier to

understand, and maintain, and by promoting code reuse.




What is encapsulation in object-oriented programming?




4

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