PythonBasics.txt

software : it is a set of programs.
program : it is a swt of instruction 
instruction : it is a set of codes
compiler : it is used to convert the high level programming language into a low level language.
python : it s a high level language , open source  programming language 
         it is designed by the guido van rosam in 20 feb 1991.
         developmemt by : python software foundation. 

         old bbc television comedy sketch series: monty python flying circus
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python application : 
1) web development (python django) ex: youtube , instagram, spotify , nasa ,etc
2) DATA SIENCE AND DATA ANALYTICS.
3) AI ?&ML 
4) CLOUD COMPUTING 
5) ROBTICS
6) GAMES
7) WEB HARVESTING / WEB SCRAPING 
8)
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website : collection of web pages.
frontend===xxxx===Backend : connecting by server 
server : providing services
client : using services 
customer: product purchase

ARCHITECT:
MVT(PYTHON) =MODERN 

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KEY FEATURE : 
1)IT IS A PLATFORM INDEPENDENT LANGUAGE 
EX: WINDOW, LINUX,MACOS
2) IT CAM CONNECT TO ALL DATABASE 
EX: MYSQOL. ORACLE ,SQL,SERVER.
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IN C,
INT X; === VARIABLE DECLARATION

VARIABLE: IT IS A RESEVED MEMORY LOCATION WHICH IS USED TO STORE SPECIFIC DATA TYPES.
IN PYTHON VARIABLES IS DYNAMICALLY TYPED , PYTHON DATA CONTAIN IN THE OBJECT FORMAT.
X
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4BYTES = MEMORYY ADDRESSES   NOTE:1 BYTES = 8 BITS
POINTER: IT IS USED TO STORE MEMORY ADDRESSES.
DYNAMICALLY TYPED = NOT NECESSARY TO DEFINE AGAIN AND AGAIN

CLASS = BLUEPRINT IS C/D CLASS
INSTANCES = BLUEPRINT K EXAMPLE IS C/D INSTANCES
OBJECT = BLUEPRINT INTO REAL IS C/D OBJECT