A Plus / Network Plus Crossword Puzzle

Complete the crossword, then click on "Check" to check your answer. If you are stuck, you can click on "Hint" to get a free letter. Click on a number in the grid to see the clue or clues for that number.
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Across:

1. Method used to encode Hard drives today
3. RAM that does not need to be refreshed
5. Maximum number of devices on a USB controller
6. Bridges are on what layer of the OSI model
7. Normal IRQ assignment for Primary EIDE controller
8. RAID level that is not fault tolerant
12. The end of each SCSI chain must be____________
16. IEEE Specification for Fire Wire
17. Chip that controls IRQs
19. Protocol of the Internet
20. RAM used by Laptops

Down:

2. Method that allowed drives to go beyond the 504 mb limitation
4. Power connector from power supply to devices
5. IEEE specification of parallel printing
6. RAID level that is fault tolerant
9. RAID level that uses mirroring
10. Protocol that is not routable
11. One Red, Green, and Blue adjacent phosphor dot on a CRT
13. Protocol of Netware
14. Number pins on floppy connection
15. Width of 168 pin DIMM
18. Hard drive limitation size