Basic Concepts

Question 1

Interface

Answer 1

Describes what a computer program does and how it interacts with the rest of programs

There is nothing more fundamental in computer science than Interfaces.

Question 2

Abstraction

Answer 2

Abstractions provide an interface to application programmers that separates policy—what the interface commits to accomplishing—​from mechanism—how the interface is implemented.

Question 3

Abstraction

Answer 3

Abstractions provide an interface to application programmers that separates policy—what the interface commits to accomplishing—​from mechanism—how the interface is implemented.