This work, which contains approximately 50,000 terms and is published alongside the German-Spanish dictionary and Spanish-German, is a technical dictionary that completely encloses the field of information technology both English-Spanish and Spanish-English. The compilation of the basic terminology of the book was obtained through reading and systematic analysis of Spanish and English literature specialist, mainly through technical journals. With the help of a computer and appropriate software is able to keep up the terms in a database until the close of the December issue of 1996, and prepare them for electronic composition. Thus it is ensured that this dictionary also reflects the current state of technology at the date of publication. This dictionary of information technology is the result of many years of systematic terminology work. A reference book for both professional translators and terminologists to all areas of the computer industry.