Is the newest version of microsoft windows

Ihave a singular monitor that is a tv for my computer. recently, i took apart my computer and put it back together. when i put in the hdmi cord and booted the computer to see if it worked, the computer turned on fine but the screen was blue with "hdmi no signal." i've tried everything that doesn't require buying spare parts, any answer is appreciated!

Which best explains why a digital leader would join a society specializing in technology

The head restraint should be adjusted so that it reaches a.the top of your ears b.the base of your skull c.the top of the head