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Across
  1. 4. teachers usually use this object to write on.
  2. 5. an electrical apparatus that by means of suction collects dust and small particles from floors and other surfaces.
  3. 7. a system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations electrical signals.
  4. 10. A device made by Arthur James Arnot and William Blanch Brain in 1889.
  5. 12. an electronic device that plays audio compact discs.
  6. 14. a typically cylindrical vessel for catching, holding, or carrying liquids or solids.
  7. 15. usually salesperson sells these
  8. 19. salesperson usually use this to indicate prices.
  9. 22. a classroom tool that allows images from a computer screen to be displayed onto a classroom board using a digital projector. This is not worth to buy, Sc : Miss Ellie.
  10. 25. a device used to connect computers with peripheral devices.
  11. 27. an object to measure the temperature of something
  12. 28. a device for making an electrical connection.
  13. 29. usually they're a caregiver for patients by managing physical needs, preventing illness, and treating health conditions.
Down
  1. 1. a person whose job is to sell a product or service in a given territory, in a store, or by telephone.
  2. 2. A role in IT which oversees the running of computer systems, ensuring that the machines, and computers are running properly.
  3. 3. a machine that has a light inside it and can be used to make the writing or pictures on a sheet of plastic appear on a screen or wall.
  4. 4. usually a person who has lost the ability to walk use this.
  5. 6. a device that has a big screen, a large memory space, and usually teachers use this device as a media to teach.
  6. 8. a person who installs and maintains electrical equipment.
  7. 9. a professional who oversees operations across their organization's office.
  8. 11. treatment to produce immunity to a particular infectious disease.
  9. 13. it's an object to copy and paste works from your device to a piece of paper.
  10. 16. the distinctive clothing worn by members of the same organization or body or by children attending certain schools.
  11. 17. one that marks.
  12. 18. An item/object that is used to store information, usually stored in a cabinet/data in hard disk.
  13. 20. a person who helps students to acquire knowledge, competence, or virtue, via the practice of teaching.
  14. 21. an implement consisting of a sponge or a bundle of thick loose strings attached to a handle, used for wiping floors or other surfaces.
  15. 23. a group of wires inside a rubber or plastic covering, which is used to carry electricity or electronic signals.
  16. 24. messages distributed by electronic means from one computer user to one or more recipients via a network.
  17. 26. a person who installs and maintains electrical equipment.