Question

was the computers of the first generation were very expensive

Answer 1

Yes ofcourse very costly with taking alot of space to these machinery

Answer 2

Hi,

The First Generation (1940-1956) computers used vacuum tubes.
It requires a lot  of money, time and space to make a single computer.

And yes they were very expensive for that time .

Examples of First Generation - ENIAC, UNIVAC

THANK YOU