In which year was chip used inside the computer for the first time? ?

An atom's diameter is about 0.1 nanometer (1×10-9m), and a human hair is about 1×10-3m. how many times greater is a human hair than an atom's diameter? sorry pushed wronf button but this is math

How can you tell if someone sent you a text message to your email instead of a email

Can someone work out the answer as it comes up in one of my computer science exams and i don't understand the cryptovariables