A bad joke

A woman goes into a department store and tells the salesman she wants a pair of pink curtains.
He assures her they have a good selection of pink curtains in many different fabrics and proceeds to show them to her.
She finally picks out a pink floral pattern.
The salesman asks, "What size do you need?"
"Fifteen inches," she responds.
"FIFTEEN INCHES!" he exclaims. "What room are they for?"
"They are not for a room, they are for my computer monitor," she tells him.
The surprised salesman exclaims, "Miss, computers do not need curtains."
To which she replies, "HELLooooooo.........I've got Windows!"