11.   The university system requires more forward planning.

12.   A digital mapping system requires a cartographic database in addition to the software and hardware required for the editing, compilation and production of maps and related products.

13.   Because a colour system requires three dots at each point on the screen, resolution tends not to be as good as a similarly-sized monochrome display.

14.   These links are in addition to any other DECNET links your systems require.

15.   The mechanical card system does not require wiring, batteries or computer hook-ups.

16.   This system would require the fitment of special electronic transponders to each bus in order to alert traffic signals.

17.   An efficient market system requires both.

18.   And he accuses Microsoft of worsening the shortage of high-technology workers in the United States because its systems require so many people to administer.

19.   Because the American justice system requires proof beyond a reasonable doubt, police and prosecutors must build a solid case before charges can be made.