Pronunciation: [lˈɪŋkə] (IPA) 
The word "linker" refers to a type of software that connects different parts of a computer program. Its spelling is determined by its pronunciation, which is /ˈlɪŋkər/ or "LIN-ker". This is due to the use of the letter "k" instead of "c" after the letter "n", which indicates a hard sound. Additionally, the final syllable ends in the vowel sound "ə" represented by the letter "e". These factors combine to form the spelling of "linker."
A linker is a software program or utility that binds together various object files and libraries to create a single executable program or shared library. It is an essential component in the process of compiling and executing code, especially in the context of programming and software development.
In simple terms, a linker is responsible for combining different modules of code, written in programming languages such as C, C++, or assembly, into a coherent and functional program. It resolves references between different object files, resolves dependencies on external libraries, and allocates memory addresses to various symbols, ensuring smooth execution of the program.
During the linking process, the linker performs several crucial tasks, including symbol resolution, relocation, and generating external references. It examines object files or libraries and identifies unresolved symbols, which are then matched with the appropriate definitions in other object files or libraries. It also adjusts memory addresses depending on the final location of the program in memory.
Moreover, a linker can optimize the final executable by removing unused code, reducing the size of the program, and improving its performance. It is typically invoked automatically as part of the compilation process, although it can also be executed manually if required.
In summary, a linker is a software tool that combines object files and libraries to create executable programs, playing a vital role in converting source code into functional applications.
The word "linker" is derived from the verb "link", which comes from Middle English "lynken" or "lincken", and Old English "hlencan". It can be traced back to the Proto-Germanic word "*hlinkaną", meaning "to clank" or "to sound". The term "linker" refers to a person or thing that connects or joins various parts or elements together, similar to the action of linking or joining objects. In the context of computer programming, a linker is a software tool or program that combines different object files into a single executable file, linking various sections of the code together to create a working program.
