Question

Note: Please post your homework to ICS232 D2L on or before the due date. If you do not post your homework on or before the due date, please post your late homework when complete (Late Homework: -15% Penalty). 1. (5 pts) Define the following a. Combination Logic: b. Sequential Logic: c. How are sequential circuits different than combinational circuits? 2. (5 pts) Add the following 8-bit two's complement numbers (i.e. one sign bit and seven data bits) AND indicate "Overflow" if it occurs. Carry bits 1110 1100 Example: 86 0101 0110 0011 0110 54 140 Answer: (-116) Overflow: A Positive Number a Positive number cannot be a Negative number 1000 1100 1111 0111 1101 0101 a. Answer b. 1111 1111 0111 0101 + Answer c. 0110 1111 0101 0101 Answer

Answer 1

As per Chegg answering guidelines, I'm answering only the first 4 parts:-

1) a) Combinational Circuit:

Combinational circuits are those circuits which do not depend on time or clock cycles and the output depends only on the present input.

b) Sequential Circuit:

Sequential circuits are those circuits which depend on time or clock cycles and the output depends on both the present input as well as the previous output.

c) Sequential circuits output depends on both the present input as well as the previous output whereas combinational circuit outputs only depend on the present input. Moreover, Sequential circuits depend on clock cycles whereas combinational circuits do not depend on clock cycles.

2) a) 1111 0111 + 1101 0101 = 11001100

As two negative numbers are giving a negative number so, there is no overflow.