2. There are 26 characters in the alphabet we use for writing English. What is the least number of bits needed to give each character a unique bit pattern?
How many bits would we need to distinguish between upper- and lowercase versions of all 26 characters? (12 points)

3. What is the largest positive number one can represent in an8-bit 2's complement code? Write your result in binary and decimal.

a. What is the greatest magnitude negative number one can represent in an 8-bit 2's complement code? Write your result in binary and? decimal.
?

b. What is the largest positive number one can represent inn-bit 2's complement code??

c. What is the greatest magnitude negative number one can represent in n-bit 2's complement code??

4. Convert the following 2's complement binary numbers to decimal.(9 points)
   a. 1010

b. 01011010?

c. 11111110?