What is Programming Language

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Presentation transcript:

What is Programming Language There are many, many different languages since the start of computers. There are about a dozen that are popular at a given time. Popular meaning the language is used in a lot of current software. Such has C, C++, Java, Java Script, Python, Perl, PHP, Ruby, Visual Basic

However Years goes by things change, languages come and go… Some are a big hit and many, many are not. Most programmers will learn and use many languages over a career. Once you have the basic down, additional languages do become easier to pick up

Why not just one language for the computer? Why so Many languages? If we a writing data for the computer Why not just one language for the computer?

THERE IS ONE LANGUAGE Not any of the popular ones Assembly Language THE CPU- The brain of the computer Only understand machine code….

Machine code is almost impossible to do, It can be done, however it has many numerical operation, tiny instructions and very time consuming… Even if it was done, others will not be able to understand.. It is made for machine not humans..

JavaScript, Action Script Popular software Bridges the gap between us and the machine language. LOW level program are more difficult to understand, and is closes to the machine. HIGH level program are more user friendly and is written and shared across different platforms. It doesn’t focus on the hardware Low Level Programs High Level Programs Machine Code CPU JavaScript, Action Script Ruby, Python Visual Basic C++ C Assembly Language

So when I say I am writing code, programming , or coding…. IT IS SOURCE CODE TO start writing any source code, statements, program, we need to understand three things. HOW TO WRITE THEM? WHERE do I write them? HOW to convert it? HOW do we run it(Execute) the program?