It has been said that the advent of the computer has accelerated the pace of life and become one of the most important inventions for the last hundred years. While I accept that the computer is crucial, I believe that electricity is the best discovery ever in human history.
Needless to say, the computer has made a significant contribution to accomplish all work with many benefits during the development of advanced technology. First, automation was accurately performed only by simple computer operations on the keyboard and mouse chips. to be more specific, people can complete assignments easily on the computer to maximize their time-saving and cost instead of working hard physically. For example, people can send a letter via email quickly instead of through the post office. Moreover, computers provide versatility with multiple-tasking functions which not only save large data and create documents, spreadsheets but also satisfy the preference for entertainment.
However, all cutting-edge devices such as computers or smartphones are powered by electricity. It means that a computer can not be operated without the electricity supply and the invention of computers would become meaningless if the computer can not be turned on. In fact, the absence of electricity is able to affect many fields including healthcare, education, transportation, business and an individual's life. It is proven that most aspects of modern life depend excessively on the availability of electricity energy.
In conclusion, although I can not deny the significance of the computer to support our life these dau, it is not the most essential invention ever. From my point of view, the discovery of electricity produced a revolution in the development of human beings. 
It has  
been said
 that the advent of the computer has accelerated the pace of  
life
 and become one of the most  
important
 inventions for the last hundred years. While I accept that the computer is crucial, I believe that  
electricity
 is the best discovery ever in human history.
Needless to say, the computer has made a significant contribution to accomplish all work with  
many
 benefits during the development of advanced technology.  
First
, automation was  
accurately
 performed  
only
 by simple computer operations on the keyboard and mouse chips.  
to
 be more specific,  
people
 can complete assignments  
easily
 on the computer to maximize their time-saving and cost  
instead
 of working  
hard
  physically
.  
For example
,  
people
 can  
send
 a letter via email  
quickly
  instead
 of through the post office.  
Moreover
, computers provide versatility with multiple-tasking functions which not  
only
 save large data and create documents, spreadsheets  
but
  also
 satisfy the preference for entertainment. 
However
, all cutting-edge devices such as computers or smartphones  
are powered
 by  
electricity
. It means that a computer can not  
be operated
 without the  
electricity
 supply and the invention of computers would become meaningless if the computer can not  
be turned
 on. In fact, the absence of  
electricity
 is able to affect  
many
 fields including healthcare, education, transportation, business and an individual's  
life
. It  
is proven
 that most aspects of modern  
life
 depend  
excessively
 on the availability of  
electricity
 energy. 
In conclusion
, although I can not deny the significance of the computer to support our  
life
  these dau
, it is not the most essential invention ever. From my point of view, the discovery of  
electricity
 produced a revolution in the development of human beings.