1. What are the two main groups of the system unit? 2. 3. What are the holes found at the back of the system unit? 4. What are the lights found in front of the system unit? 5. Where do you insert the diskette? 6. It keeps basic instructions in the computer memory. 7. It is sometimes called the chassis. 8. It is used to manage the display on the monitor. BACK VIEW OF THE SYSTEM UNIT​