Cs abstraction definitions

Question 1

What is Abstraction?

Answer 1

Abstraction is a way of separating the logical and physical aspects of a problem

Question 2

Why do we need abstraction?

Answer 2

Details that do not contribute to the essential characteristics of a problem are left out.

Question 3

What is Computational Thinking?

Answer 3

The ability to think logically about a problem and apply techniques for solving it

Question 4

What is a decomposition?

Answer 4

breaking a complex problem or system into parts that are easier to conceive, understand, program, and maintain

Question 5

what is an algorithm?

Answer 5

a list set of instructions used to solve problems or perform tasks, based on the understanding of available alternatives.

Question 6

How does abstraction help in user interface (UI) design?

Answer 6

Abstraction simplifies complex operations into intuitive actions for users, such as clicking a button to perform a task, without showing the underlying code or processes involved.

Question 7

What is an example of abstraction in hardware?

Answer 7

In hardware, a CPU’s instruction set is an abstraction. Programmers write assembly code based on this set, without needing to understand the physical operations within the CPU.

Question 8

What is abstraction in computer science?

Answer 8

Abstraction is the process of simplifying complex systems by focusing on the important details and ignoring unnecessary complexity.

Question 9

Why is abstraction important in programming?

Answer 9

Abstraction helps manage complexity, making it easier to understand, design, and develop large systems by hiding unnecessary details.

Question 10

What is procedural abstraction?

Answer 10

Procedural abstraction refers to using procedures (or functions) to encapsulate sequences of instructions, allowing programmers to focus on what the procedure does rather than how it does it.

Question 11

What is data abstraction?

Answer 11

Data abstraction is the process of handling data in a way that separates its logical representation from its physical implementation, such as through abstract data types like stacks or queues.

Question 12

What is the difference between abstraction and decomposition?

Answer 12

Abstraction focuses on reducing complexity by hiding details, while decomposition involves breaking a problem down into smaller, more manageable parts.

Question 13

How does abstraction help with program maintenance?

Answer 13

By separating higher-level ideas from detailed implementations, abstraction makes it easier to modify or update parts of a program without affecting other areas.

Question 14

What is an example of abstraction in everyday life?

Answer 14

A map is an example of abstraction—it shows only important information like roads and landmarks while omitting irrelevant details like trees or street vendors.

Question 15

What is an abstract data type (ADT)?

Answer 15

An ADT is a model for a certain kind of data structure that defines its behavior (such as operations and allowed actions) without specifying how it’s implemented.

Question 16

What is an example of an abstract data type?

Answer 16

A stack is an ADT where data is added and removed using “push” and “pop” operations, following the Last In, First Out (LIFO) principle, without specifying the internal data storage method.

Question 17

How does abstraction support code reuse?

Answer 17

Abstraction allows common functionality to be encapsulated in reusable components or functions, reducing the need to duplicate code and making it easier to maintain.

Question 18

What is abstraction by generalization?

Answer 18

Abstraction by generalization involves identifying common characteristics among different objects or processes and grouping them under a generalized concept.

Question 19

How does object-oriented programming (OOP) utilize abstraction?

Answer 19

OOP uses abstraction by defining objects with attributes and methods, focusing on what the object represents and what it can do, rather than how it works internally.

Question 20

What is an interface in programming, and how does it relate to abstraction?

Answer 20

An interface is a defined set of methods that a class must implement, allowing programmers to work with objects at a higher level of abstraction without knowing their internal workings.

Question 21

What is the role of abstraction in algorithm design?

Answer 21

Abstraction in algorithm design involves focusing on the high-level steps needed to solve a problem, while ignoring the specific implementation details at first.

Question 22

How does abstraction help in creating models of real-world systems?

Answer 22

Abstraction allows programmers to create simplified models of real-world systems by focusing on essential elements and omitting unnecessary details that don’t affect the model’s functionality.

Question 23

What is the difference between abstraction and encapsulation?

Answer 23

Abstraction hides complexity by focusing on the essential aspects of an object or system, while encapsulation hides the internal state of an object and restricts access to it through defined methods.

Question 24

How does abstraction help with algorithm efficiency?

Answer 24

By focusing on the high-level design of an algorithm and ignoring implementation details, abstraction allows programmers to choose more efficient approaches and optimize performance.

Question 25

What is abstraction in terms of software layers?

Answer 25

Software is often divided into layers of abstraction, where each layer provides services to the layer above it, allowing developers to work at different levels of detail and focus on specific functionalities.