Question
I need help with some computer science problems. Thanks in advance! 1. What is the 16-bit 2's complement representation of decimal number -255? A) 1111111100000001
I need help with some computer science problems. Thanks in advance!
1. What is the 16-bit 2's complement representation of decimal number -255?
A) 1111111100000001
B) 1111111111000001
C) 0111111101111101
D) 1111110101010111
2. What is the result of adding the following two 6-bit binary numbers 010101 and 011110? Express as a binary number.
3. How many Half adders and Full adders are required to build a ripple carry adder to add 2 8-bit numbers? Mark all correct answers.
A) 2 Half Adders and 6 Full Adders
B) 1 Half Adder and 7 Full Adders
C) 0 Half Adders and 8 Full Adders
D) 8 Half Adders and 0 Full Adders
4. Assuming AND gates have a delay of 2 ns, OR gates have a delay of 1 ns, and XOR gates have a delay of 3 ns, what is the shortest time required to accurately add two numbers using an 8-bit carry-ripple adder?
A) 21 ns
B) 22 ns
C) 23 ns
D) 24 ns
E) 25ns
5. What is the 8-bit 2's complement representation of decimal number -25? 11110111 11100111 00011001 11001101 [3 points] We can add three 8-bit numbers by chaining one 8-bit ripple carry adder (RCA) to another 8-bit RCA. Assuming every gate has a delay of 1 ns, what is the shortest delay of this three 8-bit number adder?
A) 31 ns
B) 32 ns
C) 15 ns
D) 16 ns
E) 17 ns
6. What is the result of adding the following two 5-bit binary numbers 00101 and 01011? Express as a binary number.
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