c-language

C is general purpose. Originally designed in the nineteen sixties and seventies by the UNIX team to become what we may now call "Open-Source" for the extended development of the UNIX-Shell command-base, and shell-accessible applications.

Later, in the ninety-eighties it evolved into an object-oriented development package later called Visual-C, which is more of an object-library based application generator, than a proper syntactic programming language.

We can't call UNIX as open source any way. And application of c-language serves for resolving human being problems by means of written c-programs ... either for creating a new one :).

There is ANSI standard c++ and several companies and OpSource communities had issued diverse versions of C, C++: Watcom, Borland, MS, linux etc. Visual C is amongst them.

Not UNIX, but C written shell-extensions and apps.

As UNIX was under initial development and distribution during sixties and seventies, C was suggested as means for end-users to develop their own shell extensions. The evolving shell included these extensions, mostly re-distributed worldwide, and their source codes published for further tweaking and honing.

If that's not "Open-Sourcing", what is ?

CPP is the mid, more "structured" version (and the most popular) between early C and it's much later mutants

Open Source is legislative notion now so often going along GPL but its different things. When someone issues software(as rule) product (commercial either free) declared as Open Source is presumed that everyone can demand to get source codes of this product. UNIX is OS and its codes are not Open Source. There is POSIX standard and everyone can create own OS its' complied as this had been done for Linux.

Your arguments are quite reasonable from general viewpoint. But I so sorry, Open Source is term now operable for law suit issues and C++ is not only for shell application for any one.

My best regards.

C or any other programming language is used by humans to instruct the CPU to execute commands ,

The syntax for different languages differ but are essentially the same.

The strength of C is that multi line instructions are reduced to a short cryptic combine instruction. (one can use and increment a variable in one instruction)

Building operating systems....thats why C was created at Bell Labs.

What course are you getting these questions from, Intro to Programming Languages?