CPU = central processing unit or processor.
GPU = graphics processing unit, graphics card, video card.
iGPU = integrated graphics or integrated graphics card.
dGPU = dedicated graphics or dedicated graphics card.
VRAM = memory which is used by a video card.
FPS = frames per second.
RAM = random access memory.
HDD = hard disk drive, hard drive.
SSD = solid state drive, solid state. Faster and more reliable than a hdd
eMMC storage = flash storage. Often found in cheap machines, slower than an SSD.
SSHD = hybrid drive.
Mobo = motherboard.
PSU = power supply unit, power supply, power brick.
SLI/Crossfire = two physical graphic cards running together to gain more performance.
IPS = in plane switching display.
TN = twisted nemantic display. Often worse than IPS displays and offer worse colors and viewing angles.
HD = 1366×768 resolution.
HD+ = 1600×900 resolution.
FHD = full HD, 1920×1080 resolution.
1440p = 2560 x 1440 – QHD or Quad HD
2160p = 3840 x 2160 – 4K, UHD or Ultra HD resolution.
4320p = 7680 x 4320 – is known as 8K