Evolution of Programming Languages Lecture 8

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Questions and Answers

What is a computer language?

  • A set of random words used to write a program
  • A set of symbols that are not predefined for programming
  • A collection of symbols and numbers used to communicate with a computer
  • A set of predefined words combined into a program according to predefined rules (correct)

Which category of programming languages is closer to natural languages?

  • High-level languages (correct)
  • Machine languages
  • Low-level languages
  • Assembly languages

What type of language uses 1s and 0s to represent instructions?

  • Machine language (correct)
  • High-level language
  • Low-level language
  • Assembly language

What software is required to write a program in a specific programming language?

<p>Appropriate software for the programming language (D)</p> Signup and view all the answers

What is the purpose of an interpreter or a compiler in high-level languages?

<p>To translate a program in a high-level language into machine language (A)</p> Signup and view all the answers

High-level languages are translated into machine language using an interpreter or a compiler.

<p>True (A)</p> Signup and view all the answers

Machine language uses 1s and 0s to represent instructions.

<p>True (A)</p> Signup and view all the answers

Low-level languages are machine dependent and difficult to code in.

<p>True (A)</p> Signup and view all the answers

Object-oriented languages are considered high-level languages.

<p>True (A)</p> Signup and view all the answers

Machine languages are closer to natural languages.

<p>False (B)</p> Signup and view all the answers

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Study Notes

Computer Languages

  • A computer language is a formal system used for instructing a computer on how to perform tasks.

Types of Programming Languages

  • High-level programming languages are closer to natural languages, making them easier for humans to read and write.
  • Low-level programming languages directly relate to machine architecture and are often more complex for humans.

Machine Language

  • Machine language consists of binary code, using 1s and 0s to represent instructions for the computer's processor.

Writing Programs

  • To write programs in specific programming languages, specialized software known as an Integrated Development Environment (IDE) is required.

Role of Interpreters and Compilers

  • An interpreter or compiler translates high-level languages into machine language, allowing the program to be executed by a computer.
  • Interpreters translate code line by line, while compilers translate the entire program into machine code before execution.

Characteristics of Low-Level and Object-Oriented Languages

  • Low-level languages are machine-dependent, meaning that code written for one type of machine may not work on another, making them more difficult to code in.
  • Object-oriented programming languages, which focus on objects and classes, are classified as high-level languages designed for easier human comprehension and use.

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