The second question is not easy to read, but the first answer is Conrad Zeus.
Usually a computer background is the image or design on the desktop. The wallpaper... Click on the background with the right mouse button and select properties or personalize to change it.
The cosmic background radiation was discovered in 1964 by American radio astronomers Arno Penzias and Robert Wilson
nobody. it was invented then built, not discovered.
It was "INVENTED"(not discovered) by Douglas Engelbart.
It was discovered thousand years ago
poop in your computer
Penzias and Wilson discovered background radiation on October 7,1965.
the word that means background of the pig is you are a bit
bacground means a background of something
destop
scaners
you dont