Linux
TUX
The BIOS? Most computers use the F12 key. Restart your computer and before the computer starts booting your operating system (the computer's brand logo is showing), press the F12 key.
Club Penguin has the logo of a penguin sitting down.
Google uses it for their Android operating system.
look at the screen and if there is the windows logo on the bottom left corner your have a windows PC if you want to get more specific click on the windows logo and then click run or search it once run pops up type in winver and it will show you your computers operating system
It could be that your computer is infected with a virus, has a problem executing the loader program that starts the operating system, has a hard drive problem, or gets caught in an infinite loop.
depends on which o.s(operating system example linux, xp, vista and so on...) you are running
Linux
Four blue squares could indicate Microsoft's Windows 8 Operating System logo
penguin
linux
Penguin Group, the book publisher.