I wanted to buy a CD player, but was completely perplexed by one model's promotional sign. So I called the salesclerk over and asked, "What does 'hybrid pulse D/A converter' mean?"
He said, "That means that this machine will read the digital information that is encoded on CDs and convert it into an audio signal."
"In other words," I said, "this CD player plays CDs."
"Exactly."
I was signing the receipt for my credit card purchase. The clerk noticed that I had not signed my name on the back of the credit card. She informed me that she could not complete the transaction unless the card was signed.
When I asked why, she explained that it was necessary to compare the signature on the credit card with the signature I just signed on the receipt.
So I signed the credit card in front of her. She carefully compared that signature to the one I signed on the receipt.
As luck would have it, they matched.
Young Husband (in the early morning): "It must be time to get up."
Wife: "Why do you say that?"
Husband: "Baby's fallen asleep."