Bit Coin Mining

i know its a long shot but i was wondering if anyone knew somewhere/one selling any asic for under 100? i dont care to much what kind just want to mine with something other than my computer 24/7. Or alternatively tell me if something like this...

Account Restricted You are currently unable to buy and sell crypto on Coinbase. Please visit https://support.coinbase.com for assistance. I don't know what to do, I've tried two different accounts and I keep getting the same error. Please help, I would greatly appreciate it...

I've recently noticed that when I open task manager the initial CPU usage is upwards of 80% and even 100% at times then it quickly shoots down to the normal level of around >10% when idle. This got me a little suspicious as I've never noticed it doing this before and found out this is typical...