Talking to Friends: If you don’t have a computer handy, then don’t forget about the analog approach - call a friend or tell him or her over coffee about a great blog post you read.

So the worst computer monitors you can buy have more resolution than the best analog TV set; and the best computer monitors are able to display up to 10 times more pixels than that TV set.

The modem of the receiving computer demodulates the analog sound signal back into a digital form that the computer can understand.