answer all please

12. Devise a 7-bit even-parity Hamming code for the numbers 0 to 4. (Hint: 0 is 0000 without parity bits. 1 is 0001 without parity bits.) (10%) 13. Write down the names of each part of the magnetic disk. (10%) B C D A E A: I B: C: D: E: 14. Let us assume we use RAID level 5 to store the following binary data: 01011111 00001010 11001101 10010001 00100001 11110011 Let us assume we have 4 disk drives, and the size of a strip is 8 bits. Illustrate how the data is stored on the 4 drives. Fill the table below. (10%) (Note that in practice, a strip is much larger than 8 bits. A strip contains at least 1 sector, and a sector is typically 4096 bits.) RAID level 5 Disk drive #2 Disk drive #3 Disk drive #1 01011111 Disk drive #4