How to access BIOS on different Computer manufactures

At some point of time working with different computer manufactures PC or Laptop it is unknown that how to access BIOS on the particular machine. Below are some useful info on accessing BIOS on HP,Dell,Acer,IBM,Sony,Toshiba and so on.

Acer	F1,F2,Ctrl+Alt+Esc
Compaq	F10
Dell 4400	F12
Dell Inspiron	F2
Dell Latitude	Fn+F1 (While booted)
Dell Latitude	F2 (On boot)
Dell Optiplex	Del or F2
Dell Precision	F2
HP	F1,F2 (Laptop Esc)
IBM	F1
Sony VAIO	F2
Sony VAIO	F3
Toshiba	Esc