11.   The computerized trading system replaces a vocal trading pit, which uses the open outcry method still employed in Medellin and Bogota.

12.   The Hebel system replaces many of the materials, such as insulation and wood framing, used in a typical house.

13.   The new system will replace ground-based radar with satellite lodestars.

14.   The new system will replace the current fixed weight system in December.

15.   The new system will replace the current fixed-weight system in December.

16.   The new testing system replaces the old Emergency Broadcasting System, which used to come on radio and TV stations, followed by a long, annoying beep.

17.   The Naqcess system would replace the current system, called the Small Order Execution System.

18.   The television industry and its Washington watchdogs need a simple, elegant ratings system to replace all this nonsense.

19.   The UPS Airlines system would replace radar, the technology that air traffic controllers use to locate a plane in flight.

20.   A digital system replaces all these.