1. both are languages used to describe how a page on the web should look. they tell the computer what to do.
	the difference b/w them is that html is a formatting language and JavaScript is a programming language.

2.TELEVISION: input- the numbers entered to get to the correct channel; output-the image that is displayed on the screen.
CD PLAYER: input- the cds that are put into the player; output- the buttons that are pushed to play the music.

3. the program has both.

	INPUT: the characters keyed in to tell the computer what to do.
	OUTPUT: The product as shown on the web.

	The currency converter has both.