please solve all of them.

Write the results of the following additions as both 8-bit binary and decimal numbers. For each part, use standard binary addition.

4. Why is an ISA unlikely to change between successive generations of microarchitectures that implement it? For example, why would intel want to make certain that the ISA implemented by the Pentium III is the same as the one implemented by the Pentium II? Hint: When you upgrade your computer (or buy one with a newer CPU), do you need to throw out all your old software