Electronics and Communication Engineering - Digital Electronics - Discussion
Discussion Forum : Digital Electronics - Section 1 (Q.No. 22)
22.
The greatest negative number which can be stored is 8 bit computer using 2's complement arithmetic is
Answer: Option
Explanation:
The largest negative number is 1000 0000 = -128.
Discussion:
16 comments Page 2 of 2.
Sunanda said:
9 years ago
Greatest positive number is 255, right?
Sudipta Majumder said:
1 decade ago
Greatest positive number = 01111111.
Taking 2's complement to get greatest negative number that is = 10000001.
Now put the formula and we get = -127.
Taking 2's complement to get greatest negative number that is = 10000001.
Now put the formula and we get = -127.
Rekha.v said:
1 decade ago
The greatest negative number which you can represent using N bit (of course signed) could be -2^(N-1).
So for 8 bit 2^7 = -128.
So for 8 bit 2^7 = -128.
Rekha.v said:
1 decade ago
The greatest negative number which you can represent using N bit (of course signed) could be -2^(N-1).
So for 8 bit 2^7 = -128.
So for 8 bit 2^7 = -128.
Pratik said:
1 decade ago
It is not largest number.
Geetha adainjan said:
1 decade ago
Why 1111 1111= -255 not came here? Please clarify it.
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