Ok these are practice questions for my upcoming exams and we werent given answer
ID: 3626808 • Letter: O
Question
Ok these are practice questions for my upcoming exams and we werent given answers for them so I want to make sure im getting them correct.I believe the first one is 90 (Choice c).
i think the 2nd one is none of the above (Please re-check for me)
Not too sure about the 3rd one. Could somebody please show me working and answer.
The unsigned binary number 01011010 in base
10 is
[a] 70
[b] 80
[c] 90
[d] 100
[e] none of the abov
The base 10 number of 213 is in binary
[a] 10110101
[b] 10111001
[c] 11010101
[d] 10011011
[e] none of the above
The two’s complement in one byte for the
decimal number –34 is
[a] 11011110
[b] 01011110
[c] 00100010
[d] 10100010
[e] none of the above
Explanation / Answer
The unsigned binary number 01011010 in base 10 is
Answer:
01011010 =>
0 x 20 +1 x 21 + 0 x 22 + 1 x 23 +1 x 24 +0 x 25 +1 x 26 +0 x 27
=>
0+2+0+8+16+0+64
=>
90
The base 10 number of 213 is in binary
Answer:
213 => 1101 0101
The two’s complement in one byte for the decimal number –34 is
Answer:
1 Byte = 8Bits
34 => 0010 0010
2’s Compliment is 1’s Compliment +1
1’s Compliment => 1101 1101
1
=> --------------
=> 1101 1110
=> --------------
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