A singular noun named one person or thing a plural names more then one
Internet Search Engine
In the excerpt it shows that the "web navigator" is something that you type "arcane codes and symbols into" and then you are "flooded with fifty thousand incorrect answers". This is exactly what we do now with search engines like Google, Yahoo, or Bing. We type in what we are looking for and in return get a list of possible results, many of which are not what we were looking for. This makes Internet Search Engine the best option.
Evidence strengthen your position, your argument, or reach a conclusion.
Back in the day we used to milk cows by hand, nowadays we have machines to do it for us
