If Bud Abbott and Lou Costello were alive today, their infamous sketch, 'Who's on First?' might have turned out something like this: COSTELLO: CALLS TO BUY A COMPUTER FROM ABBOTT ABBOTT: Super Duper computer store. Can I help you? COSTELLO: Thanks I'm setting up an office in my den and I'm thinking about buying a computer. ABBOTT: Mac? COSTELLO: No, the name's Lou. ABBOTT: Your computer? COSTELLO : I don't own a computer. I want to buy one. ABBOTT: Mac? COSTELLO: I told you, my name's Lou. ABBOT…