My older brother works as a systems engineer.

He is an expert in systems engineering.

Our school has introduced a new PA system.

The filesystem of my computer has broken down.

He lost everything.

She is planning a date with her current boyfriend.

My boyfriend gave me a gift.

Everyone was surprised by the news.

The automotive navigation system in my car has downloaded the latest map data.

Geographic Information Systems are very useful tools for map making and spatial data analysis.