In college, it is usually very convenient and helpful to own a computer, but you don't have to buy it. It depends on individual needs and circumstances. Usually determined by the following factors:

Study and research: In college life, you will need to use computers for study and research. Computers can be used for writing, searching information, taking online courses and learning platforms. If you need to use the computer frequently to complete the course assignments and participate in academic projects, owning your own computer will improve efficiency and convenience.

Convenient and flexible: having a personal computer can make it easier for you to arrange the time and place of study and work. You can use computers at any time in libraries, dormitories, cafes and other places, without relying on the equipment of school computer laboratories or libraries.

Resources and tools: Computers can provide you with various resources and tools, such as word processing software, spreadsheets, presentation tools, programming environment, etc. These tools may play an important role in learning and research.

But buying a computer also needs to consider personal economic ability and actual needs. If you can afford a computer and expect to use it often for study and work, then buying a computer may be a good choice. In addition, some universities may provide computer laboratories and library equipment for students to use, and you can make use of these resources as needed.

So buying a computer is usually helpful in college life, but whether it is necessary to buy it depends on personal needs, economic ability and actual situation.