Question

binary,
11110111= ?

Answer 1

it's signed

Answer 2

the result has to be a decimal

Answer 3

in decimal it is 247

Answer 4

it's signed bro

Answer 5

There are 10 types of people in this world, ones who know binary, others who don;t! ;)

Answer 6

yes sir it is 247

Answer 7

See http://numbermonk.com/binary/247/en

Answer 8

yup @shubhamsrg since 10 is 2 in decimal

Answer 9

I dont want to convert it, I need to know the steps for it, and im not a "sir" :P

Answer 10

am glad you got it! -_-

Answer 11

Yo Yo @shubhamsrg

Answer 12

There are 10 types of people in this world, ones who know binary, others who don;t, rest 8 doesn't exist in this world

Answer 13

\[1+2+4+16+32+64+128\] i think will do it

Answer 14

there is a zero in the 8th place

Answer 15

:P But please show me the steps if you can I would be grateful

Answer 16

I know Binary... Use it's knowledge in Computer @Christos

Answer 17

In my statement, 10 corresponded to 2 , (in base 2) -_-

Answer 18

work from the right to the left

Answer 19

That's why rest 8 dont exist :P

Answer 20

ok satellite ill do it

Answer 21

it is negative number

Answer 22

first invert it

Answer 23

we can talk about 8 if it was base 10 , but when its base 2, talking about 8 is baseless ?

Answer 24

1s place
2s place
4s place
16s place
32s place
64s place
128s place

Answer 25

Am I forced to invert it @modphysnoob ?

Answer 26

I mean thats the only way?

Answer 27

yes, that's how you figure out negative number

Answer 28

u have to change 11110111 into decimal ryt?

Answer 29

@Christos

Answer 30

11110111
1 in the ones place
1 in the twos place
1 in the fours place
0 in the eights place
1 in the sixteens place
1 in the thirty twos place
1 in the sixty fours place
1 in the one hundred twenty eights place

Answer 31

thanks modphy I figured it out thanks all for the contributions :D

Answer 32

It is signed , Can't you people read?

Answer 33

invert then add one

Answer 34

signed by what artist?

Answer 35

lol

Answer 36

11110111 (2) = 1*2^7+1*2^6+1*2^5+1*2^4+0*2^3+1*2^2+1*2^1+1*2^0

Answer 37

:D

Answer 38

Or use Dibble Dobble method....It Will Easier

Answer 39

4 Bit signed number
-3 1101
-2 1110
-1 1111

0

1 0001

2 0010

3 0011

Answer 40

11110111

subtract one

11110110

invert

00001001

now use conversion

Answer 41

should give you -9

Answer 42

yes indeed it gave me -9 I already had the solution I just needed the steps to reproduce it with other numbers

Answer 43

=)

Answer 44

it is just subtract one and then invert

Answer 45

or invert and then add one right?

Answer 46

I think they both work ,

1111
invert
0000
add one
0001

1111
subtract one
1110
invert
0001

Answer 47

I see

Answer 48

I am assuming you are in computer architecture class ?

Answer 49

Yea that's right :)

Answer 50

if it's a sign positive number I don't need to do that stuff right?

Answer 51

no, singed positive number would have leading number =0

Answer 52

ok