Answer:
invention of computers, machines, the internet, electricity
Step-by-step explanation:
The economy of any nation is developed as the factories or the industries developed. And factories developed by new implementing new techniques, fast production and defect free production. The invention of the electricity is the first landmark in the development of any industry. With electricity uses of different machines came which increased the speed of production and also lead to defect free production. Now it takes less time to manufacture one thing in the machine where it took several days and hard labour to make one thing. Production rate of the factories has increased. The use of computers and internet has also made the work of the people much easier now-a-days, as computers perform various works in a very less time and much more accurately than manual work.