[lemma=□] □ □
[lemma=today] □ □
[lemma=compute] □ □
He argues that in today 's computing world , SAN ( System Area Network ) technology has matured to the point where it is a feasible interconnect for clusters . Today 's computing environment is extremely complex and interdependent . Since many of today 's computing systems tend to separate data ( the logical information representing a transaction ) from presentation ( how the information is presented to the user ) , an XML signature can sign multiple pieces of data . In short , every significant aspect of today 's computing world was revealed in a magnificent hour and a half .