Life Long Ago

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Across
  1. 3. Device for listening to music and news
  2. 5. Device for browsing and typing
  3. 8. Nice-looking or pleasing to the eye
  4. 9. Old-fashioned lights using oil
  5. 10. Heater powered by coal
  6. 11. Written messages sent by post
Down
  1. 1. Appliance for cleaning clothes
  2. 2. Portable device for making calls
  3. 4. Math operations for repeated addition
  4. 6. Kitchen appliance for heating food quickly
  5. 7. Electronic messages sent online
  6. 12. A power source for lights and appliances