We are focusing on In-System Programming (ISP) which means that you can program the chip without removing it from the circuit. A Direct AVR Parallel ... that uses a USB connection (see where ...
Turning an Arduino of virtually any sort into a simple AVR 6-pin ISP programmer is old hat. But when Atmel came out with a series of really tiny AVR chips, the ATtiny10 and friends with only six ...
The internal flash and EEPROM memory of many of the AVR microcontrollers can be programmed "in system", without removing the circuit from its socket, through the ISP (In-System Programming) interface.