And while 38% of you knew a hardback was a type of book, 57% knew that a hard drive was part of a computer.
But all that computer knowledge is being put to good use, because around two thirds of you use the internet for homework, and say it makes your work easier and quicker to do - and improves your grades.
Kids teaching teachers!
The survey of 1,000 kids aged between seven and 16 was carried out for the Microsoft website MSN, and they also told how kids are helping adults catch up with computers and the net.
More than half of you have helped an adult with the internet, and 20% have even helped their teachers find their way round the World Wide Web.