I have recently found out about Bitcoin, and as I read more and found about about hardware and stuff, I thought of a lot of questions.
So Butterfly Labs has Bitcoin mining hardware, and I was thinking, "if I'm going to do it, I'm going to do it well." With my current setup (GTX 560), I was making about 1 cent a day. I have given up with that now, because with power usage of mining with a GPU, it's not even worth it. So I was looking at the 600 GH Bitcoin mining card on Butterfly Labs (https://products.butterflylabs.com/homepage-new-products/600-gh-bitcoin-mining-card.html), and with the specs that they have listed, I figured on this calculator (http://www.bitcoinx.com/profit/) that it would make enough Bitcoins to pay for itself in about 16 days (at the current difficulty level, its power consumption, and price of Bitcoins).
Now, that brings me to shares in pools. It says that EasyMiner software is provided. That would mine the Bitcoins for me, but when I was mining with GUIMiner, I realized that I wasn't getting share after share, I was getting one about every 4 or 5 minutes. Is it the software that requests shares, or does the pool's server push it to your miner? This EasyMiner that comes with this mining card, does it know when it finishes mining and requests another share, if that's the case?
Also, the calculated price, is that mining alone, or is it in a pool? It says that alone, it would take 148 days to decrypt a block, or whatever it does (I'm not quite sure what it does yet, but from what I understand, "blocks" are SHA hashes or something). Would I be able to put that card in my current machine (in a free PCI express slot) and run the program, and it wouldn't even slow my PC down? Or would I want a different machine for it? It seems too easy to get all of that money with just this one card.
There is also the TerraMiner IV (www.cointerra.com/product/terraminer-iv-2ths-networked-asic-miner-may-batch/) that is 2 TH/s, but comes with CGminer (with web-based management, whatever that means. Connect to it via the internet?). Would it be better to invest in this than in the ButterflyLabs 600 GH/s card?