Windows 8.1, Windows 7 and Windows 7 have utility called Msinfo32.exe and this provides detailed information about your system. The System summary includes Hardware Resources, Components and System Environment. To access this utility you need to type in msinfo32.exe in the run command and press enter.
Using this utility the system information can be exported to a file by selecting export option under File menu. And this also provides option to see remote computers system information. A quite useful tool for system troubleshooting.
Screenshot from Window 8.1