Saturday, April 13, 2013

Programming Languages: How were they created, which language was their compilers created in, and the hierarchy followed in their creation.

A computer is totally worthless without any schedule to meet on it. As you all know, any program ineluctably a programming delivery to be written it ? the nomenclature then becomes the medium via which the solution the program encompasses is communicated to the computer. But how precisely are the programming languages themselves developed? How is it known that the programming language would be capable of describing all programs that leave alone ever be written in the language? How can programming languages limit point or enhance the programs written in them? And finally, how exactly depart the computer be able to execute that program?Everything starts with the central central processor inside a computer. Inside a processor will be at least a processor and virtually memory. The processor has its own language, called an Instruction Set. This is what you mean when you say x86, x64 or x86-64, IA-32, IA-64, AMD64, PowerPC etc. An Instruction Set is a set of instructions ? a specific bit string (16, 32, 64, 128 or 256 bits long) which the processor recognizes. An instruction triggers a specific response from the processor ? scram certain(a) data from memory or perform certain operations on the data or write backside the results to the memory. Consequently, instructions become the medium for communicating a program to the processor. All programs, regardless of whichever language they are written in, must(prenominal) be converted into a sequence of these instructions to begin with they can be executed by the processor.

Before the starting time programming language was designed, manually creating these bit string sequences by hand was the only way to program a computer.

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introduce devices the likes of punched cards and floppy discs were created that had these bit string sequences exhausting coded and the computer would read off these devices and perform what was required. While this subprogram worked,

The reason the grade is left as unspecified because the seek wasnt a homework assignment, and was never graded as such. I just wrote it because many persons (CS and IT students) are confused about the work flow involved in designing programming languages, and asking questions like If a C compiler is needed to compile a C program, how was the C compiler written?. In the intrust that it helps others with such queries, I am making it available here.

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