Across
- 2. a wide panel of keys, it contains numbers, letters e.t.c
- 3. system used to cool down temperatures in areas such, commonly used in rooms
- 4. projects sound
- 7. lights an automated system of changing lights used to maintain traffic conditions on roads
- 8. a lever moved in different directions to control movement
Down
- 1. earphones joined by a band that projects sound to its user
- 5. a machine used for printing out papercopies
- 6. a device used for its projection of light