Computer virus and Number system

12345678910
Across
  1. 2. Short form of vital information resources under seize
  2. 4. It is a program but it is very dangerous
  3. 5. It is the first of virus
  4. 7. Which was the first antivirus software
  5. 9. It us a technique used by antivirus programs for detecting virus
  6. 10. A nibble is of how many bites
Down
  1. 1. What an antivirus have to save the files
  2. 3. Base of decimal number system
  3. 6. Which number can easily represent two state
  4. 8. How many bits are in a byte