Hello guys.
I recently moved to the US permanently for a PhD study. The way I see it, if I'm going to buy some kind of house in the future, I will need to have a good credit history, but as of now I don't have any. The problem is, I don't really understand how the credit system works. In Russia where I came from, interest rates on credits are so high that most people, including my family, simply never take any credits, so I have zero knowledge on this topic and, even after reading a few articles, I still do not understand the basics.
So, let's take an example. I would like to buy a PC in 4-5 months, and I think it is a good reason to take my first credit in my life. Suppose I get some basic secured credit card. We have something like this (all numbers are totally made up):
Total PC price: $2500
Price to take one in credit: 12 payments of $250 each month ($3000 total)
Credit card deposit: $500
APR: 20%
Interest rate: 15%
So, assume I get this card and put $500 on balance. Will I be able to buy this PC in credit right away? The way I see it, one of the following scenarios works:
1) I do not pay anything right away, instead monthly my balance decreases by $250 and I need to refill it by paying $250 to the bank.
2) Same as 1), only I have to pay some amount in front, like pay $1000 in front and then pay the rest $2000 in 8 instances.
3) My balance instantly decreases by $3000, I need to put $250 + APR / Interest rate every month until the balance again becomes $500. Seems kind of silly since it is simpler just to take a loan of $3000 from a bank and then pay it off in 12 months.
So, assuming I don't have any credit history or anything, is it possible for me to go the 1st or the 2nd way? Is it how the credit system actually works? And do I understand it correctly that, to get a "perfect" credit rating, I just need to never make my balance negative? Or do I also need to keep it above the deposit level, that is $500 in this case?
If anyone could clarify if I understand the system right, or if I am missing something very essential, or just explain how the system basically works without specific details related to specific banks or cards, I would be really grateful!