Keo said: Hmm...It doese but there don't seem to be any numbers invovled, just letters. I say it could Chemisty or something too but not so sure myself.
Algebra. Each letter stands for a number.
He's figured that TCP/IP = TC/I (Since dividing a number with another number gives 1, the P's cancel out) and since he's misread the I as 1, he's got TCP/IP as TC.