Computer science puzzle

1234567891011
Across
  1. 3. number system based on two digits
  2. 4. short for picture element
  3. 7. the only language computer can understand
  4. 9. Short for binary digit.
  5. 10. the number of pixels per inch when an image is displayed
  6. 11. to turn information into a code so that it cannot be read by everyone
Down
  1. 1. the number of bits used to encode the color of each pixel
  2. 2. Image made up of pixles
  3. 3. A group of 8 Bits
  4. 5. the number of samples taken per second
  5. 6. the relationship between the original sound and the recording
  6. 8. hexadecimal representation of 10101100