Learn Python Programming for Beginners

This will be a complete tutorial about Python Programming for Beginners.

What is Python?

Python is a popular programming language. It was created by Guido van Rossum, and released in 1991.

It is used for:

• web development (server-side), 
• software development, 
• mathematics,
• system scripting.

Input Devices and output Devices

• Input devices- mouse, mic
• Output Devices- Speaker, Printer 
• CPU- Central processing unit.

Memory

1. Cache- It is present in CPU chip.Access time is less
2. Main Memory- It is called RAM memory.Where all the programs are stored and run. Ram memory is temporary storage.
3. Hard Disk- It is a secondary storage.

Operating system

Manager of system.

Memory : Desirable Features.

1. Access time---->(low)
2. Cost----->(Low)
3. Capacity----->(High)

Computer Organisation

In the types of memory we want our system to have all desirable features 

1. Cache- present in  CPU chip, costly, Access time is less.  
2. Main Memory- It have moderate features.
3. Secondary storage-access time is more,Capacity is high,Cost is low. 

Computer only understand binary digits so we need Programming language like Python, Java,C++ etc.

Compiler vs Interpreter

Compiler and interpreter are the softwares which converts high level languages to Machine level languages.

Compiler: Selects the whole code in total and converts into machine level languages. C and C++ uses compiler.

Interpreter: Select and convert the line one by one to Machine level Language. Python uses Interpreter.

Python release date: 1991

Worlds 2nd most used Programming language. 1st one is Javascript.

Very simple Syntax.

Python is also known as General purpose Programming Language.

It is used in various fields:

• Console application and script.
• Desktop application.
• Web applications.
• Game Development.
• Machine learning
• Deep Learning
• AI
• Big data
• IOT etc.

Multiparadigm support

1. Procedural style programming like c
2. OOPS like Java. 
3. Functional Programming like Lisp. 

Portable or Platform Independent

1. First compiled into intermediate code.
2. Then run by interpreter.