www.bbcnoun.com.ng 10/10 1. What is the most common tool used to restrict access to a computer system? ans: passwords 2. Sound card is an expansion card that plugs into one of the slots on your ____ ans: motherboard 3. A computer program that converts an entire program into machine language is called ___ ans: compiler 4.One of the reasons air conditioner is needed in a computer environment is _ an: Condition Temperature 5. Which of the following is NOT a type of printer? ans: Line-matrix 6. One of the most common monitor sizes is ___ ans: 15_inch 7. A computer cannot 'boot' if it does not have ____ ans: Operating System 8. Which of the following is NOT a type of scanner ans: curvebed scanner 9. Junk e_mail is also called ____ ans: spam 10. DOS stands for ____ ans: Disk Operating System