Computer cookies, just as baked cookies, contain small bits in them. Instead of chocolate chips or raisins, computer cookies have in them bits of data. Usually innocuous and helpful, cookies may on occasion be detrimental to safe computing.
When you buy your next electronic gadget during the next few months, whether for yourself or a gift, chances are the salesperson will ask if you want to add an extended warranty to the purchase. You're under pressure to decide in a few seconds whether or not to spend about 15 percent of the device's value to protect it. I almost always decline these offers.