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
- 256
- 128
- 255
- 127
Answer: Option
Explanation:

The largest negative number is 1000 0000 = -128.

Discussion:
16 comments Page 2 of 2.

Sandy said:   9 years ago
No, the largest positive no is 127.

132,64,32,16,8,4,2,1.
0 1 1 1 1 1 1 1.

Geetha adainjan said:   1 decade ago
Why 1111 1111= -255 not came here? Please clarify it.

Pavan said:   7 years ago
And why 0111111 is largest? please explain.

Sunanda said:   9 years ago
Greatest positive number is 255, right?

Pavan said:   7 years ago
In 8bit, 11111111 is the largest right?

Pratik said:   1 decade ago
It is not largest number.


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