List two differences between a Microcontroller and a Microprocessor?

What are the smallest and largest numbers that can be represented by a $16-$bit unsigned

variable?

What are the smallest and largest numbers that can be represented by a $16-$bit signed

variable?

Do the $.$ORG and $.$SET directives in AVR assembly language produce machine language

opcodes?

What is the content of R$16$ in hexadecimal after the execution of the following commands:

a$.$ LDI R$16,0$b$00100101$

ADDI R$16,20$

b$.$ CLR R$16$

LDI R$18,0$x$20$

ADD R$16,$ R$18$

c$.$ LDI R$16,\text{'}2\text{'}$

d$.$ LDI R$16,\text{'}$a$\text{'}$