Welcome to Seven Forums bberkey.
To view your basic computer information, open the Start menu, right-click Computer, then click Properties. You should now be able to see what OS is installed, if SP1 is also installed, your total memory, etc. There are several free programs you can install that will provide much greater details about your computer. Things like the name of the manufacturer of the memory chips, the hard drive, the motherboard, computer temperatures, etc. A lot of folks here recommend Speccy. Speccy - System Information - Free Download
Windows 7 is pretty good at sorting things out and making best use of memory. One of the tutorials here explains what else can be done to optimize Windows 7. Not everything will apply to your computer and the old saying "if it ain't broke, don't fix it" certainly applies. Unless you're having a specific problem sometimes it's best to leave things alone. If you have other questions folks will always be here to help. Optimize Windows 7