DIGITAL ELECTRONICS

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Across
  1. 2. output of an AND gate is low
  2. 3. full subtractor circuit requires
  3. 6. TTL operates from
  4. 7. when used with ic QUAD indicates
  5. 8. +sign in boolean algebra
  6. 9. format used to present logic output
Down
  1. 1. display more digital signals
  2. 4. if output of NOR gate is high
  3. 5. generic array logic device (GAL)
  4. 8. any number with 0 exponent