HP Notebook Series Hardware And Software Manual page 42

TouchPad and Keyboard
Display System Information (fn+esc)
The hotkey displays information about system hardware
fn+esc
components and software version numbers.
To clear the display, press
esc.
In the display, the version of the system BIOS (basic
fn+esc
input-output system) is displayed as the BIOS date. On some
notebook models, the BIOS date is displayed in decimal format.
The BIOS date is sometimes called the system ROM version
number. For information about updating the system ROM, see the
"Software Updates" section in Chapter 8, "Software Updates and
Recoveries and System Software."
Hardware and Software Guide 2–13