Computer Fundamentals - Engineering

Q1:

Super-computers

A Are found at thousands of sites around the world

B Can now fit on a single silicon chip

C Are usually designed to process accounting applications

D Are not fast enough for some applications

E None of the above

ANS:D - Are not fast enough for some applications

If Super-computers are not fast enough for some applications, what computer is really fast enough for all applications, is there any?

I don't agree with the given answer.

My answer is A & B.