First of all, technology is developing day by day. The functions of mobile phones are becoming more and more powerful. In fact, many functions can be completed on the mobile phone, but it may be inconvenient. In fact, writing papers and looking up information are not particularly demanding on technical equipment. You can use mobile phone WPS, in fact, many functions are available. If you are not familiar with the operation interface, try more, and Baidu is not bad.

Then, if the real mobile phone function is still not enough. In fact, many universities have computer rooms available. If not, I believe your friends and teachers will understand and help you. No more, you can map search nearby internet cafes.

But in the end, I really suggest you buy a computer. Because in fact, many jobs may need computers in the future.