Operating System Components
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Questions and Answers

What is the primary function of the Loader in an operating system?

  • To compile source code into executable code
  • To translate high-level language into low-level machine language
  • To execute executable files in memory
  • To load executable files into memory and execute them (correct)

    • What type of compiler is capable of generating executable code for a different platform?

  • Cross-compiler (correct)
  • Interpreter
  • Preprocessor
  • Source-to-source compiler

    • What is the term for the ability of an object to take more than one form?

  • Inheritance
  • Abstraction
  • Polymorphism (correct)
  • Encapsulation

    • What is the process of representing essential features without including background details?

    <p>Abstraction</p> Signup and view all the answers

    What is the mechanism by which one class can inherit the properties of another?

    <p>Inheritance</p> Signup and view all the answers

    What is the term for wrapping of data and functions together as a single unit?

    <p>Encapsulation</p> Signup and view all the answers

    What type of compiler translates source code of one language into source code of another language?

    <p>Source-to-source compiler</p> Signup and view all the answers

    What is the term for the code associated with a given procedure call not being known until the time of the call at run-time?

    <p>Dynamic binding</p> Signup and view all the answers

    What is one of the benefits of inheritance in code maintenance?

    <p>It allows changes in the base class to be reflected in the derived classes</p> Signup and view all the answers

    What is a disadvantage of inheritance?

    <p>Tight coupling is created between the base class and the derived class</p> Signup and view all the answers

    What is the term for polymorphism that is determined at compile time?

    <p>Static polymorphism</p> Signup and view all the answers

    What type of classes contain abstract methods that are implemented by derived classes?

    <p>Abstract classes</p> Signup and view all the answers

    What is the term for the process by which the compiler does not do type checking at compile time?

    <p>Dynamic binding</p> Signup and view all the answers

    What can be implemented differently in different inherited classes and the call to these functions is decided at runtime?

    <p>Virtual functions</p> Signup and view all the answers

    What is the primary function of fields in a C# class?

    <p>Provide state to the class and its objects</p> Signup and view all the answers

    What type of inheritance involves a base class serving as a parent class for two or more derived classes?

    <p>Hierarchical inheritance</p> Signup and view all the answers

    What is represented by the methods of an object in object-oriented programming?

    <p>Behavior of the object</p> Signup and view all the answers

    What is the primary benefit of using inheritance in C#?

    <p>Code Reusability</p> Signup and view all the answers

    What is the purpose of the 'using' keyword in C#?

    <p>To include namespaces in the program</p> Signup and view all the answers

    What is the default modifier of a class in C#?

    <p>Internal</p> Signup and view all the answers

    What is the term for the process of identifying only the required characteristics of an object, ignoring irrelevant details?

    <p>Abstraction</p> Signup and view all the answers

    What is the purpose of constructors in a class?

    <p>To initialize a new object</p> Signup and view all the answers

    What is the purpose of properties in a C# class?

    <p>To set and get the values of variables</p> Signup and view all the answers

    What type of inheritance involves a derived class inheriting from two or more base classes?

    <p>Multiple inheritance</p> Signup and view all the answers

    What is the concept in object-oriented programming that allows us to define a new class based on an existing class?

    <p>Inheritance</p> Signup and view all the answers

    What is the term for the unique name given to an object, enabling it to interact with other objects?

    <p>Identity</p> Signup and view all the answers

    What is the concept in object-oriented programming that improves the usability and reusability of code?

    <p>Encapsulation</p> Signup and view all the answers

    What is the purpose of a class identifier in C#?

    <p>To provide a name to a class</p> Signup and view all the answers

    What is the symbol used to separate the class name from its parent class or interfaces in C#?

    <p>:</p> Signup and view all the answers

    What is the benefit of encapsulated code in terms of testing?

    <p>It makes the code easier to test</p> Signup and view all the answers

    What is the primary function of an Assembler?

    <p>To translate assembly language into machine code</p> Signup and view all the answers

    What is the purpose of Comments in programming?

    <p>To explain the code</p> Signup and view all the answers

    What symbol is used to indicate a Single-line comment in C#?

    <p>//</p> Signup and view all the answers

    What is the difference between Value type and Reference type variables?

    <p>Value type variables can be assigned a value directly, while Reference type variables cannot</p> Signup and view all the answers

    What is the base class for all data types in C#?

    <p>Object Type</p> Signup and view all the answers

    What is the difference between Object Type and Dynamic Type variables?

    <p>Type checking for Object Type variables takes place at compile time, while for Dynamic Type variables it takes place at run time</p> Signup and view all the answers

    What is the purpose of a Linker in a computer program?

    <p>To link and merge various object files together</p> Signup and view all the answers

    Who developed the C# programming language?

    <p>Anders Hejlsberg and his team</p> Signup and view all the answers

    Study Notes

    Language Processing System

    • A loader is a part of the operating system responsible for loading executable files into memory and executing them.
    • A cross-compiler is a compiler that runs on one platform (A) and generates executable code for another platform (B).
    • A source-to-source compiler translates source code from one programming language to another.

    Object-Oriented Programming

    • Objects are the basic run-time entities in an object-oriented system.
    • A class is a group of objects that share common properties and program parts.
    • Encapsulation is the wrapping of data and functions together as a single unit.
    • Abstraction represents essential features without including background details.
    • Inheritance is a mechanism where one class can inherit properties of another.
    • Polymorphism means the ability to take more than one form.
    • Dynamic binding is when code associated with a procedure call is not known until runtime.

    Compiler and Assembler

    • A preprocessor produces input for compilers.
    • An interpreter translates high-level language into low-level machine language.
    • An assembler translates assembly language programs into machine code.
    • A linker links and merges object files to make an executable file.

    C# Programming Language

    • C# is a modern, general-purpose, object-oriented programming language developed by Microsoft.
    • C# is designed for the Common Language Infrastructure (CLI) and the .NET Framework.
    • C# supports various types, including value types, reference types, object types, dynamic types, and string types.
    • Pointers in C# store the memory address of another type.

    Class and Object

    • A class is a blueprint for an object, and an object is an instance of a class.
    • Class and object are the basic concepts of object-oriented programming.
    • Modifiers can be used to specify access levels for classes and members (public, internal, etc.).

    Class Declaration

    • The class keyword is used to declare a class.
    • The class identifier (or name) should begin with an initial capital letter.
    • A class can implement multiple interfaces.

    Inheritance

    • Inheritance is a fundamental concept in object-oriented programming that allows defining a new class based on an existing class.
    • There are four types of inheritance: single, multi-level, hierarchical, and multiple inheritance.
    • Advantages of inheritance include code reusability, code maintenance, and code organization.
    • Disadvantages of inheritance include tight coupling, complexity, and fragility.

    Encapsulation

    • Encapsulation is a mechanism that improves code reusability, usability, and testability.
    • Data abstraction is the process of identifying only the required characteristics of an object, ignoring irrelevant details.
    • Advantages of encapsulation include data hiding, increased flexibility, and easy testing.

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    Description

    This quiz covers the components of an operating system, including the loader and cross-compiler.

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