Many system information programs will make at least some attempt to list your PC's hardware. Unfortunately, this doesn't always work as you might expect, and so you might read that your system includes a "PCI\ VEN_1B21& DEV_1080& SUBSYS_78161462& REV_03", or something similarly cryptic.
PCI-Z is a tiny portable tool which tries to get around this problem by querying the PCI ID Repository - a public database of device ID codes - and returning readable names, rather than meaningless codes.
To use the program, just run it and wait. Within a few seconds you should see a table containing your hardware's details: the raw PCI codes, manufacturer, device name, subsystem and error message (if there is one).
Any or all of this data can be copied to the clipboard, or exported as a CSV file for reference later.
Version 1.2 brings:
-Command line options
-Better PCI ID database manipulation and redundancy
-Automatic search for driver (requires browser and Internet connection)
-Bug fixes and code improvements