Why are computers used in almost all the areas ?

Because it is easy to used

Explanation:

For students:Such an example,the app called jamboard are a bit diffucult to use in the phone(we need to download it) but if we use in laptop there will be a sign of jamboard if you touch that the app called jamboard will come easily so you can save some time there.We also can search in the laptop easily in laptop (if you touch the new tab button) but if you do that in phone it will be a bit hard

For workers:If they do something in word or PDF it will be easy for them because laptop are wider than phone.So,if you type a form in the laptop it will be easy to check.But if they use phone they need move to side and they also need to scroll down.It will be hard for them.They even can zoom the PDF in phone but it will hard for them.

Is this explanation okay

answer inspecting packets in isolation from their context;