This function is used to query system characteristics not easily
queried with another function.
INPUTS
tags
- taglist with appropriate queries. The tag's ti_Data field
should point to the location where the result of the query
is stored. Do not forget to clear the location before, as
queries not understood will be left untouched.
RESULT
All queries understood by this call will have appropriate values
assigned to the location a tag's ti_Data pointed to.