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.
Learn how to pronounce j in Espanol from Spanish teacher Andrea Cukier in this Howcast video. The letter J. The letter J sounds a little bit like a tired dog, or a thirsty dog. The [panting sound] huh, huh, huh sound. It's like a strong h in English. Let me give you some examples. The word for never, Jamas. JamÃ¡s. jamas jamÃ¡s