Google Search: Google or Logo?

[bigbadwulff]

In the Google Search at the top of your screen, does it say Google or have the Google symbol? Mine switched from Google to the Logo and back in the past week. How does that happen? I know it basically makes no big difference but just how does it have control over what is i
on MY screen? I swear I haven't updated and I don't think it's on auto update. I usually don't allow auto updates.