yes
The first one that I know of was the SAGE computer's light gun in the middle 1950s.
Electric Light Bulb
On a desktop, the power button will usually light up. On a laptop, the power lights (located on the front of the laptop) will usually light up first.
if there I a green light on the bottom of your computer
no, Australia did not have the first computer in the world
light source
The orange light along with the clicking sound means that the computer is loading
First, run a computer diagnostic test to see why the diagnostic light is on. The computer is trying to tell you something. If the light is on the computer has stored a fault code for you to read.
You could have a wiring issue between the computer and the light, or you have a bad computer.
You first have to repair the failure that caused the code stored in the engine computer. Then the light can be cleared with a scan tool.
Normally it means your computer is charging, i suggest you tell us what model the computer is and where the light is! ;)
A light switch and a computer are similar because they both work on the on/off concept.