C++ Lecture 1 in Urdu

                                            History of Computer…

            Two type of computer history
(1) Mechnical Era
(2) Electronic Era

Mechnical era …..(1600 ------ 1940)
(1) blaise pascal   (1642)
                    Mathemtication
                    only adition and subtractioin
(2)Gottfried leibnitz (1673)
                    improve an pascal machine
                    add, sub.. ,  multi…. , division
(3)charlas bebbiges (1822)
                 Father of modran computer
                 More accuracy in calculation
                 Difference engine
                 anaylisis engine
                 punch card
                 perfrom any math operation
(4) Howard akin  (1943)
                 Design the howard mark 1
                 impelmention of babbage machine
                 built by ibm

        Electronic Era
(1) Genertion One (1945……1958)
            vecum tube etc..
              decimal  number  used
(2) Generation two (1958..1964)
               transistor
               high level language
(3) Genertaion three (1964…1974)
                 introduction of IC (intrgrted circuit)
                 Micro programming
(4) Genertion 4     (1974…..present)
          large scale Ic

1.        History Of C++

2.      During1970 DennisRitchie createdCProgramminglanguage                            
In the early 1980’s, also at Bell Laboratories, another programming language was created which was based upon the C++ language.

3.      C++ is also called as C with classes

4.      Stroustrup states that the purpose of C++ is to make writing good programs easier and more pleasant for the individual programmer.

5.      C++ programming language is extension to C Language.

        low level language  

           that  is a programming language that provides little or no abstraction of programming concepts, and is very close to writing actual machineinstructions. Two good examples of low-level languages are assembly and machine code.  

High level Language 

  The first high-level languages were introduced in the 1950's. Today, there are many high-level languages in use, including BASIC, C, C++, Cobol, FORTRAN, Java, Pascal, Perl, PHP,Python, Ruby, and Visual Basic.