I have no idea what I'm doing

So basically I'm afraid to buy absolute sh1t, because I have no idea what anything on a gaming pc is, or what I should be looking for.

I found this computer with the following specs

AMD FX8350 8 Core Processor running at 4GHZ. 2. 16GB RAM 3. 240GB SSD Drive 4. Activated Windows 10 Pro operating system. 5. MSI - 7693 970 Gaming Motherboard. 6. NVIDEA GFORCE GTX970 4GB Graphics card.

I don't need an amazing set up, just to play some half decent games and do my university work on.