This process was sometimes called linkage editing and the output known as a load module. A compiler works with what are sometimes called 3GL and higher-level languages. An assembler works on programs written using a processor's assembler language.
In general, however, when between vowels (as in exactamente) the Spanish x is pronounced like the English ks sound but softer or less explosive. When it comes before another consonant (as in expediciÃ³n), it has the s sound in some regions/countries but the soft ks sound in others.
A stand-alone E in the Spanish language is the same as the Y, which means and. In the Spanish language, the Y is pronounced ee and the E is pronounced Eh. The letter I is also pronounced ee. In order to keep the words from flowing into one another, the conjunction before the noun is changed to a different sound.