You can generate a nice report (HTML or XML format) of your laptop/desktop hardware information by executing this command:

lshw -html > sysinfo.html

You may need to install it first… For Debian and Ubuntu users installation is simple..

sudo aptitude install lshw

You can find the detailed information about lshw from the following page: http://www.ezix.org/project/wiki/HardwareLiSter