Hello Aspirant

I hope you are doing good. With reference to your query , I would like to inform you that their are many specializations or domain in computers from which students are unaware as they btech and bca options only to persue career in . However, their speciailization in computers in which you can go  through diploma or short term course. Here are some in the following:-

1. Acturial science

2. Data science

3. Database management system

4. Machine Learning

5. Web developing

6. Android developing

You can persue diploma or certification course in these domains and apply for them

Hope you found this answer helpful. Good luck for your future