Add 3 and 5 Carry bits 1. 4-bit number 4-bit number

add 25 and -20 (using 8-bit numbers) 8 and -19 (using 8-bit numbers)

QUESTION 2 In order to select the chip A19-A15 must be set to B.(Give only the five binary bits.) A14 A19 32K×4 A15 CS

1-30. Calculate the total number of bit changes in a one cycle of an 8-bit counter which is counting in binary number. If the counter is now used to count in Gray code, then what will be the total number of bit changes in one complete cycle? What is the advantage of lower number of bit changes?