What is an Urban Operating System?
a central data hub for a "smart" city
the new operating system for tablets manufactured for Google
a new design for a computer mainframe
new technology that allows you to start your car remotely

The battle of sabine pass is important because? a) it was a stalemate between union and confederate armies. b) it resulted in the largest confederate casualty in the war. c) it marks the failed attempt of the union army to invade the confederate state of texas. d) it was won by the union soldiers and marked a turning point in the western front of the war.