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22-Jun-2016 13:31

A compiler is computer software that transforms computer code written in one programming language (the source language) into another computer language (the target language).

Compilers are a type of translator that support digital devices, primarily computers.

but also provided a basis for the design of B and C languages.

BLISS (Basic Language for Implementation of System Software) was developed for a Digital Equipment Corporation (DEC) PDP-10 Minicomputer by W. Wulf's Carnegie Mellon University (CMU) research team.

Early operating system and systems software were written in assembly language.

In the 60s and early 70s, high-level languages for system programming was still controversial due to resource limitations.

The CMU team went on to develop BLISS-11 compiler one year later in 1970.

Multics (Multiplexed Information and Computing Service), a time-sharing operating system project, involved MIT, Bell Labs, General Electric (later Honeywell) and was led by Fernando Corbató from MIT.

A bootstrap compiler is written in the language that is compiled.Still several research and industry efforts began the shift toward high-level systems programming languages, for example, BCPL, BLISS, B, and C.BCPL (Basic Combined Programming Language) designed in 1966 by Martin Richards at the University of Cambridge was originally developed as a compiler writing tool.Program faults caused by incorrect compiler behavior can be very difficult to track down and work around; therefore, compiler implementers invest significant effort to ensure compiler correctness.Compilers are not the only translators used to transform source programs.

A bootstrap compiler is written in the language that is compiled.Still several research and industry efforts began the shift toward high-level systems programming languages, for example, BCPL, BLISS, B, and C.BCPL (Basic Combined Programming Language) designed in 1966 by Martin Richards at the University of Cambridge was originally developed as a compiler writing tool.Program faults caused by incorrect compiler behavior can be very difficult to track down and work around; therefore, compiler implementers invest significant effort to ensure compiler correctness.Compilers are not the only translators used to transform source programs.Primitive binary languages evolved because digital devices only understand ones and zeros and the circuit patterns in the underlying machine architecture.