Cryptic Hunt

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Across
  1. 2. First handheld mobile phone was made by them
  2. 3. Toilet paper-> telecommunication
  3. 7. Doraemon's famous gadgets
  4. 8. 10^15 bytes
Down
  1. 1. Redpanda Browser
  2. 4. One of the five big tech
  3. 5. A dog launched this social media giant
  4. 6. Google