Is an iPhone a good replacement for a computer?

For school

Yes you can reaserch everything much faster
Like google translate, google search, etr. But stuff like essays and projects you will need a computer for!
I love my IPhone I rarely go on my pc but when I need to right a essay my laptop is awesome…

Of course not.
An iPhone is exactly that -- a phone.
It's not a tablet or a laptop.
How do you expect to be able to write essays or reports?

Depends on what you will need it for. Do you need it to surf the internet and text/talk? Then sure, ok. That's not usually the case though.

Most students need either an iPad or a laptop to write up essays/assignments, communicate with others for group projects, and use the internet.

You probably won't need to bring any gadgets if your school is well equipped with computers, but if you need a computer for school, I suggest getting a laptop or an iPad with a separately purchased keyboard case for typing.

No.iPhones do not have adobe, so if there's a clip that is not on YouTube, chances are you can't watch it. Not to mention, how are you going to write papers. Computers are better than iPhones. If you want something other than a computer, get a tablet with a USB outlet.