I hold a advent 8111 laptop am i competent to use it for playing games on ie is it powerful satisfactory?

Answer:

diablo,diablo2, diablo2 lords of destruction and neverwinter night will play well on it. i play those on my gateway laptop

which is give or take a few the same specs as yours. anyway adjectives games

have the minimum required specs for the computer programmed near the front of the booklet.
it depends on the game you want to play, something similar to WoW and Everquest might not run properly,
check the specs against the game, if its worthy then run for it.
with a 1.6 GHz processor and intel onboard graphics, it really isn't a screaming gamer, and as be posted WoW and such games probably will not run if you can even install them.