It means - playing undemanding games, like Chess and Solitaire from time-to-time.
My question about video-card was more about whether (or not) it was powerfull enough for 1920X1200 HD monitor...?
Onus :
Well, it looks to me as though the most demanding uses are prefaced by "light," which is subject to a lot of guessing. For example, for gaming, it might mean "frequent play, but undemanding games," or it might mean "newest, most demanding games, played rarely," or some variance of that. Guessing wrong means some will howl about overkill, and others will scream "anemic!" OP, we need more information please.