I guess Wi-Fi and cell phone are definetely on the top ten, with motion games (Wiiiiiii) , ipods (I love this one) ... beneficial? we think they are, but it is mostly because we are becoming so needy in this aspect. Technology and our willingness to make our lives easier grow hand in hand... Do I need my digital clock beside my bed in order to go to work in time? yes, because is there !! because that's what I know... Gadgets are not bad, but I dont know about beneficial (-:

Technology is beneficial when make our life easy! So, my notebook have all I need just in one product. Music, Internet, docs, books, games, bla bla bla, I don´t think that is a beneficial thing to carry a lot of things. But, I love my WII too hahaha

Well, There are many important gadgets which make our life more easier and enjoyable. For example, cellphones, laptops, Wi-Fi, and memory flashes.

I think the answers are cellphone and Personal Computer..

IC (integrated circuit) & electromagnetism