So a system using both might cost less than $1 million.

I helped set up a system using this technology in a public school's network.

The system used an M-40 computer which could do 40,000 operations per second.

His system has not used a single snow day this year.

The system has used two car and control systems since its creation.

In systems using all old newspapers, the loss is 12 to 16 percent.

He said one such system can use the same amount of water a day as five households.

The system used a standard record player, and built the picture up slowly.

A system using paid areas is often called fare control.

It is also possible to piece together your own system using a variety of different equipment.