Any modern laptop or mobile device will be useful in your studies. Tablet devices are particularly useful in allowing you to access content whereas laptops can often be more useful in creating content, like your assignments. However, before you choose a device to purchase for your studies, we highly recommend you contact your School for any particular requirements your course may have.
As a student, you have access to discounts when you purchase a device from Apple or Dell. Check out the ECU page on buying a computer for more information.