C ch 1 what is c language

C is a pronounced "c-sharp".

It is a object -oriented programming language create by Microsoft that runs on the .net framework

C# has roots for the cfamily and the language is close to other popular language like c++ and java.

The first version was released in year 2002 the letest version c#8 was released in September 2019

C# is used for 

#1 mobile app

#2 desktop app

#3 web app

#4 web service

#5 web sites

#6 games

#7 vr

#8 database app

#and mach more

          WHY WE USE C# 

#1 it is the most of the popular language in the world

#2 it is easy to use to learn and simple to code

#3 it has a object oriented language which gives a clear structure to program and allows code to be reused dowering development costs.

#5 as c# is close to c/c++ and java is u learn it the main consept is clear in all program 

What is computer?

Computer is a election device that takes input , process and it gives output.

            DIFFERENCE BETWEEN ELECTION AND ELECTRONIC

ELECTRIC:- ELECTION device work on low power in the device your are not able to get ELECTRIC shock .

ELECTRONIC:- ELECTRONIC device work on high power you are able to get ELECTRIC shock the be careful to use it.

        WHAT IS 0 AND 1?? 

0 AND 1 is not a physical thing you can't touch this is only a 0==no power 1==power this formula work on any computers.

                          software ????

there is two type of software 

1# application software

2# system software 

Application software is user and oprated software by user!

And system software is a pre program sofware to handle task the computer to make easy and fast response!!

      IDENTIFICATION IN C

    what is identifier } as learn works like other language 

1# contant

2# variable

3# keyword

Institutions }.    As  sentance like other language 

#1 data type delalation institutions

#2 input/output institution

#3 arithmetic institutions

#4 control institutions

                 #CONTANT

Any information is contant

Data=information=contant

   #######  Type of contant

Primary.                                   Secondary

Integar                                  Array

Real.                                       String

Character.                           Pointer

                                              Union

                                               Structure

                                                Emulator

          #INTEGAR

integar is a nber but on it there is no point..

       #REAL

is a number point on it it's called real constant

       #character contant

If single character on it it's called character contest like (2) (3) (s) a().    (Space)

 character number used = symbol it's a hot character constant

#.              STRING

A STRING IA ALWAYS ON A DOUBLE AUR MORE WORDS GROUP CALLED STRING

  #.             VARIABLE

VARIABLE ARE THE NAMES OF MEMORY LOCATION WHERE WE STORE DATA 

#.    RULES 

    #1 VARIABLE name is any combination of alphabet digit and underscore 

Variable name can't start with digit 

#.        KEYWORD 

what is identifier

Presenting words

Reverse words

List of keywords

 Auto |. Double | goto | signed | whsigned

Break| default | if.       | Size of | void

Case | else | int | static | white

Continue| extern| regited |switch

Cont | for | return | type def

Do | float | short | union

       ######## DATA TYPE DECLARATION  

            Instruction

What is instruction?

As we know sentance in programming languages it's it's called intrutions:-

Instruction are command

Type of instruction.

> Data type instuction

>Input output instuction

>Control inscution

   #data type declaration instuction 

Data type 

.int

.char

. float

. double

.void.

         ###INPUT OUTPUT INTRUCIONS

#1 KEYWORD Is standard input device

#2 monitor is a output device