Python Programming Notes-Complete Guide for Students

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 Introduction to Python Programming 


Program: Program is the set of instruction or commands that a computer follows to perform a specific tasks or job.

Instructions: An Instructions or commands is a word , or statements or set of symbols written using a programming language that tells the computer what to do.
ex: print("hello")

Programming: Programming is the process of designing, writing, testing, debugging, and maintaining a set of instructions (called a program or code) that tells a computer how to perform a specific task or a particular problem.
                                           In simple words : Programming is the process or communicating with a computer by giving it step-by-step instructions to perform a task.

Programming Language: A programming language is a formal language used to write instructions that tell a computer what to do and how to perform specific tasks.
                                              A computer cannot understand human languages directly in the same way humans do. Therefore, programmers use programming languages to communicate instructions to a computer. These instructions are written in the form of a program to perform different tasks.
Note 1 : 
Formal Language: A formal language is a language that follows a fixed set of rules for writing and interpreting expressions. 
Examples of Programming Languages:
  • Python: Used in Artificial Intelligence, data science and automation.
  • C Programming: Used in system programming and embedded systems.
  • C++: Used in game development and software development.
  • Java: Used in application and enterprise software development.
  • JavaScript: Used to create Interactive websites. 
Types of Programming Languages: 
  • Low-Level Languages: These languages are closer to the computer's hardware. Example include Machine Language and Assembly Language. 
  • High-Level-Language: These languages are easier for humans to read, write, and understand. Examples: Python, C/C++, Java, JavaScript, etc. 
Computer Language: A computer language is a language used to communicate with a computer and give it instructions to perform different tasks.
Types of Computer Languages: 
  1. Machine Language:

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