how much is too much?

How much time do you spend on your computer each day?

i spend about 1-2 hours on my ccomputer a day just play game and go youtube.

How about texting your friends on your cell phone?

i sometimes texting for my friends, children, my wife... I text 2 or 3 times in a week. I think this too much.

Should parents limit the amount of time kids do these activities?