introduction to programming :

Sunday, November 18, 2012

Introduction to programming :


WE will  start to give you introduction in the programming
Lesson  one : introduction to programming :
first we should answer the question

what is meant by programming ?
the programming is the process of writing code and instructions to the computer or any other device so that device can do some job or process .
like handling data or doing some business
and each programming language has its main characteristics
and the development of programming language is  related by the development of the hardware also
so  when the first computer is invented during the 40's and 50's
after the electric computer during the 20's
the programming language during this period was very complicated  because it  was a serial of numbers of zero's and one's
and that was very hard to programmers
after then transistor was invented and the computer become very  powerful and  new programming languages was developed


so  what actually means by programming languages :


the programming language is a set of instructions that is written following a set of rules and then the file is compiled and executed on the computer
the programming languages is divided  to  high and low based on how much its close to the human language
if the computer language is  much closer to the human language it is categorized as high level
like  Java and C
and  Assembly As  low level
and also categorized based on the job  that language develop for
also  other language run as more general using some kind of virtual machine like JAVA or C#
 

charateristics of programming languages :

we know that  the computer language is a set of instructions after you write you program or code
the compiler (a special program that translated your code into the machine language)
translates the code into zero's and one's and then the application start running

 

and the general rules of the programming language is :

1 - representing data and information
the data is represented based on the binary system  binary system(system contains just zero's and one's)
2- the second rule is the instructions
every instrucion is or line of code is programmed to do some process like
adding or multiply or handling divide on zero and so on
 
 
first lesson is finished the second lesson will be Programming languages
 
 

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