The full forms of things.

 Full form of things part number 1. 

URL: Uniform Resource Locator.

CPU: Central Processing Unit.

RAM: Random Access Memory.

ROM: Read Only Memory.

IDEK: I Don't Even Know.

IDK: I Don't Know.

GLHF: Good Luck Have Fun.

LOL (New version): Laugh Out Loud.

LOL (Old version): Lot's Of Love.

E=mc2: E=energy, m=mass, c2= speed of light.

Done for full-form things. Hope you know the full form of ROM and RAM now.