Computers require electricity in order to run, so many come equipped with power supply .
Question 1:
Computers require electricity in order to run, so many come equipped with power supply ........ These are*^*attached to the computer and are plugged into electrical circuits in homes and businesses.
A.brushes
B.earphones
C.microphones
D.cords
These questions are from this test. Would you like to take a practice test?