Well, pretty much all this computer building related jargon-
"i5 2500K Quad Core Sandy Bridge processor" - What the [censored] is that [censored]?
"50W power supply, 1.5 TB HDD, and Nvidia GeForce GTX 560 (460 at first)." - ?
Sorry if I sound like some redneck derp, I just don't know [censored] about computers!
The i5 3.3Ghtz is simply the name of the CPU that I have. The CPU is basically what makes the computer work, with the clock speed (how fast it works) being the main factor in telling how good a CPU is. For instance, an old Intel Pentium 4 from back around 2004 would have had a clock speed of around maybe 2.5 Giga Hertz. Now, the Pentium 4 had one core, meaning that about 2.5GHz was all that it had, but modern CPUs generally have two or more cores, with each core having its own clock speed. A quad 3.4 Core CPU would have 4 cores running together, each with a clock speed of 3.4GHZ, adding up to a total speed of 13.6GHZ (It's not quite that simple, but will do for a basic explanation). The faster the clock speed, the faster the computer will run.
The Nvidia GeForce GTX 460 is a GPU, or graphics card, it's what supplies the horsepower for actually displaying the graphics of a game. They are generally measured in how much Video RAM they have (Or VRAM), the more RAM, the more stuff that can be displayed at once without a performance drop (Again, somewhat oversimplified). The GPU also has a clock speed, which is how fast the GPU operates. Without at least a moderate clock speed all of the VRAM in the world would be useless.
The Power Supply is exactly that, it supplies the power that lets the PC run. They are measured in wattage. The more wattage a PSU has, the more it will be able to power.
HDD stand for "Hard Disk Drive" which is data storage. TB is a Terabyte, which is around 1,500 Gigibytes (Or GB). The more bytes you have the more data can be stored.
Ah, the topic has been moved to the Skyrim section, I see.