Consider the following website url: what does the "http: //" represent?

How do i draw hello world in python and how do i make it loop?

To hide gridline when you display or print a worksheet

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!