English

1. An electrical apparatus that by means of suction collects dust and small particles from floors and other surfaces.
4. A device for making an electrical connection.
6. A tool that marks on a white board.
11. Usually salesperson sells these
13. A person who installs and maintains electrical equipment.
15. A device used to connect computers with peripheral devices.
18. A person who helps students to acquire knowledge, competence, or virtue, via the practice of teaching.
19. A system for transmitting voices over a distance using wire or radio, by converting acoustic vibrations electrical signals.
21. A professional who oversees operations across their organization's office.
22. A device made by Arthur James Arnot and William Blanch Brain in 1889.
24. An item/object that is used to store information, usually stored in a cabinet/data in hard disk.
26. A role in IT which oversees the running of computer systems, ensuring that the machines, and computers are running properly.
27. Messages distributed by electronic means from one computer user to one or more recipients via a network.
28. 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.
29. 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.

2. An electronic device that plays audio compact discs.
3. A group of wires inside a rubber or plastic covering, which is used to carry electricity or electronic signals.
5. A typically cylindrical vessel for catching, holding, or carrying liquids or solids.
7. An object to measure the temperature of something
8. Treatment to produce immunity to a particular infectious disease.
9. Usually a person who has lost the ability to walk use this.
10. Usually they're a caregiver for patients by managing physical needs, preventing illness, and treating health conditions.
11. It's an object to copy and paste works from your device to a piece of paper.
12. A person whose job is to sell a product or service in a given territory, in a store, or by telephone.
14. The distinctive clothing worn by members of the same organization or body or by children attending certain schools.
16. An implement consisting of a sponge or a bundle of thick loose strings attached to a handle, used for wiping floors or other surfaces.
17. Teachers usually use this object to write on.
20. A person who installs and maintains electrical equipment.
23. A device that has a big screen, a large memory space, and usually teachers use this device as a media to teach.
25. Salesperson usually use this to indicate prices.