How has construction changed from the early 1900s to now?

The modern day construction is being done by alot ofTechnology. This Technology is time consuming. the technology alows workers to work fast we have programs for blue prints in stead of doing it all by hands, we have laser levels that helps us to see the level of the ground instead of taking like 10 minuts to set up a scope and the meausuring stick. Todays society is allowing us to get work done faster. its easier and more accurate. In the Early 1900's its was all done from scratch. The measuring was done by measuring tape. now we have These Machines that can calculate the measurment fast and accurate. we have nail guns now a days. the nail gun wasn't created till like in the 1950's. Most nailing these days are done by the nail gun.