Number System Crossword

12345678
Across
  1. 1. I only have 2 symbols.
  2. 5. I am Nibble into 2.
  3. 6. I have 8 symbols.
  4. 8. My base is 16.
Down
  1. 2. I am half a byte
  2. 3. My base is 10 to the power of 0 into 1.
  3. 4. The digit that represents off.
  4. 7. I am the smallest unit of data that a computer represents.