| No. | Item | Definition |
|---|---|---|
| 1. | accessory | extra item that adds function |
| 2. | adapter | piece that makes things fit |
| 3. | add-on | extra feature or component |
| 4. | aid | thing that helps accomplish something |
| 5. | apparatus | equipment designed for a specific purpose |
| 6. | appliance | device for household or practical use |
| 7. | assembly | collection of parts put together |
| 8. | attachment | added part for a function |
| 9. | battery | device storing electrical energy |
| 10. | board | circuit board holding components |
| 11. | bolt | sliding lock device for doors |
| 12. | bracket | supporting piece attached to something |
| 13. | breaker | device that stops current flow |
| 14. | bulb | electric light-producing device |
| 15. | charger | device that charges a battery |
| 16. | clamp | device for holding things tightly |
| 17. | compressor | machine that increases gas pressure |
| 18. | connector | piece that links parts together |
| 19. | contrivance | cleverly made tool or plan |
| 20. | controller | device that regulates operation |
| 21. | converter | thing that changes one form to another |
| 22. | coupling | linking piece joining two parts |
| 23. | detector | device that finds something present |
| 24. | dispenser | device that gives out a substance |
| 25. | display | device that shows information |
| 26. | earbuds | small in-ear listening device |
| 27. | engine | machine that converts energy to motion |
| 28. | equipment | tools and machines for a purpose |
| 29. | extension | added part that increases capability |
| 30. | fan | device that moves air |
| 31. | fastener | thing that holds parts together |
| 32. | fitting | part made to join components |
| 33. | fixture | fixed piece of equipment |
| 34. | flashlight | portable electric light device |
| 35. | fuse | safety device that melts to stop |
| 36. | gadget | small useful tool or machine |
| 37. | gauge | instrument for measuring level or size |
| 38. | generator | machine that produces electricity |
| 39. | headphones | device worn to hear audio |
| 40. | heater | device that produces heat |
| 41. | holder | thing that holds something in place |
| 42. | implement | tool used to perform a task |
| 43. | indicator | thing that shows a condition |
| 44. | instrument | tool used for precise work |
| 45. | invention | newly created useful thing |
| 46. | inverter | device converting DC to AC |
| 47. | joystick | control device moved by hand |
| 48. | key | device used to open a lock |
| 49. | keyboard | device for typing input |
| 50. | keycard | card device used for access |
| 51. | lamp | device that produces light |
| 52. | laser pointer | device emitting a pointing beam |
| 53. | latch | device that fastens a door |
| 54. | locator | device that finds a position |
| 55. | lock | device that secures something closed |
| 56. | machine | powered equipment that performs work |
| 57. | means | method or instrument for achieving |
| 58. | mechanism | system of parts working together |
| 59. | meter | instrument for measuring something |
| 60. | microchip | tiny integrated electronic circuit |
| 61. | microphone | device that captures sound |
| 62. | microprocessor | central processing chip |
| 63. | module | self-contained functional unit |
| 64. | monitor | device that watches and reports |
| 65. | motor | machine that produces motion |
| 66. | mount | supporting piece for holding something |
| 67. | mouse | handheld pointing device |
| 68. | nozzle | device that directs a fluid |
| 69. | peripheral | external device connected to a computer |
| 70. | power supply | device providing electrical power |
| 71. | printer | device that prints onto paper |
| 72. | probe | device for examining or measuring |
| 73. | processor | chip that executes instructions |
| 74. | projector | device projecting images onto a surface |
| 75. | pump | device that moves fluids |
| 76. | rectifier | device converting AC to DC |
| 77. | regulator | device that controls a process |
| 78. | relay | switch operated by another circuit |
| 79. | remote | device for controlling from a distance |
| 80. | scanner | device that digitizes images |
| 81. | sensor | device that detects changes |
| 82. | setup | arrangement of equipment or parts |
| 83. | sprayer | device that sprays liquid |
| 84. | stand | support for holding an object |
| 85. | stopcock | valve for controlling flow |
| 86. | switch | device for turning circuits on |
| 87. | system | organized set of connected parts |
| 88. | tap | device controlling liquid flow |
| 89. | terminal | device for input and output |
| 90. | tool | implement used to carry out tasks |
| 91. | touchscreen | screen that responds to touch |
| 92. | trackpad | touch surface for cursor control |
| 93. | transducer | device converting one energy form |
| 94. | transformer | device changing voltage levels |
| 95. | uninterruptible power supply | Backup power device for electronics. |
| 96. | unit | single piece of equipment |
| 97. | universal remote | Remote that controls many devices. |
| 98. | USB hub | Device that adds USB ports. |
| 99. | utensil | simple tool used for a task |
| 100. | valve | device controlling flow through a pipe |
