1, do I have to burn the bootloader to a new avr chip in order to use arduino IDE to program it?
2, I think I can use pins 10, 11, 12, and 13 in my uno as an ISP to program a new avr chip. Am I correct?
3, I have to burn a bootloader to a new sthandalone avr chip, for uploading sketch using RX and TX pin of my uno. am I correct? and I need to remove the chip from my uno to do so?
4, I have a new Amega8 chip. can I use it in my uno board? it is the same size. if yes, do I just burn the bootloader to this chip and put it into my uno, and it will work?