Q$1.$ What is the difference between a source code and a machine code? $(10$ points$)$ Q$2.$ What is an assembler, and what is it used for? $(10$ points$)$ Q$3.$ Arduino UNO chip $($ATmega$328$P$)$ consists of how many digital port registers? Name them. $(10$ points$)$ Q$4.$ Explain what DDRx$,$ PORTx, PINx registers are and what they are used for. You can select any specific port of the ATmega$328$P chip. $(20$ points$)$ Q$5.$ Explain how to use the DDRx register to configure a digital pin as a read$/$write pin. Provide corresponding commands and a breakdown of each command. $(20$ points$)$ Q$6.$ Explain how to use PORTx register to set a digital pin as high$/$low$.$ Provide corresponding commands and a breakdown of each command. $(20$ points$)$ Q$7.$ Explain how to use the PINx register to read a digital pin. Provide an example command and its breakdown for a specific digital pin. $(10$ points$)$