He entered the contest.

Research on retroviruses is greatly contributing to the advancement of medicine.

I bought a new headset.

What kind of topping do you like on your pizza?

I added cheese as a topping to the pizza.

This shirt is made of 100% cotton.

The size of this file is one zebibit.

This data contains more than 1 yobibit of information.

This hard drive can store 1 tebibit of data.

I bought new boxer shorts.