| No. | Item | Definition |
|---|---|---|
| 1. | adapter | device that converts connections |
| 2. | airflow | movement of cooling air |
| 3. | antistatic | reducing static electricity risk |
| 4. | ATX | common motherboard size standard |
| 5. | audio jack | small audio connector |
| 6. | backlight | light behind LCD screen |
| 7. | backplane | board linking internal components |
| 8. | bandwidth | data transfer capacity |
| 9. | battery | powers clock and settings |
| 10. | benchmark | performance measurement test |
| 11. | bezel | outer frame around screen |
| 12. | BIOS | basic startup firmware |
| 13. | bottleneck | part limiting performance |
| 14. | cable | wire for data or power |
| 15. | cache | very fast small memory |
| 16. | case | computer enclosure |
| 17. | chipset | controller chips on motherboard |
| 18. | clock speed | processor operating frequency |
| 19. | CMOS | stores firmware settings |
| 20. | connector | plug or socket interface |
| 21. | core | individual CPU processing unit |
| 22. | CPU | main processor of a computer |
| 23. | daughterboard | secondary board attached to mainboard |
| 24. | diagnostic | test for hardware problems |
| 25. | DIMM | desktop memory module |
| 26. | DisplayPort | digital display connection |
| 27. | dock | port-expanding connection station |
| 28. | dongle | small plug-in device |
| 29. | driver | software controlling hardware |
| 30. | DVI | digital video interface |
| 31. | ESD | electrostatic discharge |
| 32. | Ethernet | wired networking standard |
| 33. | exhaust | air leaving the case |
| 34. | expansion slot | socket for add-in cards |
| 35. | fan | air-cooling component |
| 36. | firmware | low-level device software |
| 37. | form factor | standard physical size and shape |
| 38. | fuse | safety part that breaks circuit |
| 39. | GPU | graphics processing unit |
| 40. | grounding | preventing static electrical damage |
| 41. | hard drive | data storage disk device |
| 42. | HDMI | digital audio-video interface |
| 43. | header | internal motherboard connector row |
| 44. | heatsink | metal part that dissipates heat |
| 45. | inductor | coil storing magnetic energy |
| 46. | intake | air entering the case |
| 47. | jumper | small configuration bridge |
| 48. | keyboard | typing input device |
| 49. | latency | delay before response |
| 50. | LCD | liquid crystal display |
| 51. | LED | light-emitting diode display light |
| 52. | M.2 | compact expansion card form factor |
| 53. | microATX | smaller motherboard size standard |
| 54. | microphone | audio input device |
| 55. | Mini-ITX | compact motherboard size standard |
| 56. | monitor | computer display screen |
| 57. | motherboard | main circuit board |
| 58. | mouse | pointing input device |
| 59. | NAS | network-attached storage device |
| 60. | NIC | network interface card |
| 61. | NVMe | fast SSD communication protocol |
| 62. | OLED | organic light-emitting display |
| 63. | open circuit | broken electrical path |
| 64. | oscilloscope | tool showing electrical signals |
| 65. | panel | flat display surface |
| 66. | PCIe | high-speed expansion interface |
| 67. | peripheral | external connected device |
| 68. | pin | small electrical contact |
| 69. | port | external connection point |
| 70. | POST | startup hardware self-test |
| 71. | power supply | converts AC to DC power |
| 72. | printer | device that prints documents |
| 73. | RAID | combined drive storage setup |
| 74. | rail | power supply voltage line |
| 75. | RAM | temporary working memory |
| 76. | refresh rate | screen updates per second |
| 77. | resolution | number of display pixels |
| 78. | RJ45 | common Ethernet plug type |
| 79. | SATA | storage connection standard |
| 80. | scanner | device that digitizes documents |
| 81. | server | computer providing network services |
| 82. | socket | CPU mounting interface |
| 83. | SODIMM | laptop memory module |
| 84. | sound card | audio processing expansion card |
| 85. | speaker | audio output device |
| 86. | SSD | solid-state storage device |
| 87. | thermal paste | heat-conducting compound for chips |
| 88. | thread | virtual processing path |
| 89. | throughput | actual data transfer rate |
| 90. | Thunderbolt | high-speed data connection |
| 91. | touchpad | finger-controlled pointing surface |
| 92. | transistor | tiny electronic switching component |
| 93. | UEFI | modern startup firmware interface |
| 94. | UPS | battery backup power unit |
| 95. | USB | common peripheral connection standard |
| 96. | VGA | older analog display interface |
| 97. | voltage | electrical potential difference |
| 98. | wattage | power output or consumption |
| 99. | webcam | camera for computer use |
| 100. | workstation | high-performance professional computer |