Explain the difference between software reengineering and refactoring?

What operating system is a smartphone most likely to use? 1.bsd 2.mac os x 3.symbian 4.linux

Dameas communication challenge is due to which factor

What is estimated time of arrival (eta)? a device that measures the acceleration (the rate of change of velocity) of an item and is used to track truck speeds or taxi cab speeds a gps technology adventure game that posts the longitude and latitude location for an item on the internet for users to find a north/south measurement of position the time of day of an expected arrival at a certain destination and is typically used for navigation applications