First, you say about you- your name and class.
Then, say about technology. Technology includes all tools, machines, utensils, weapons, instruments, housing, clothing, communicating and transporting devices and the skills by which we produce and use them.
Then say about the impacts of the technology development.
Either positive or negative, or both. The positive impacts of technology, and the negative impact of technology.
Positive impacts:- 
You needn't use the side-heading. It is just to show you.
1.The technology had made the people to work smarter than harder. It is the technology, which changes the hard work to smart work.
2.The technology makes the people to finish the work smarter, with the  use of modern machines. Otherwise, we have to spend more time in every work.
Negative impact:-
Now, u can say about the negative impact.
1.The technology development, made the people even more lazy. 
2.The backbone ailments arises because of it.
Then. u may conclude by saying that,
It is good if we take the positive end. So, BE POSITIVE; TAKE POSITIVE.
Hope this will help you.
sorry for taking time, i am slow in typing.
thank you very much
no mention, it is all because i have the mentality to encourage the people who tries to speak good in A.S.L.
Good Luck. Good Luck. Good luck. Good Luck.