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Digital Literacy Computer Basics Computer Basics Binary

Raphael Reiter
Raphael Reiter
6,820 Points
Posted by Raphael Reiter
Raphael Reiter
6,820 Points

0000111. I answered 9 because I thought it was 6+2+1. can you explain my mistake please?

  1. I answered 9 because I thought it was 6+2+1. can you explain my mistake please? i dont understand.

I had the understanding that the 1st row from the right equaled 1, the 2, then 6, and then 8. Am i wrong?

Also Is there a place where we can get answers that we answered incorrectly in the quizzes? that would be great.

thanks for your help. best, raphael

9 Answers

Frank Schurink
Frank Schurink
4,543 Points
Frank Schurink
Frank Schurink
4,543 Points

Hi Raphael,

You made a mistake with the 3th, because it's not 6 but 4.

00000000 = 0 00000001 = 1 00000010 = 2 00000011 = 3 00000100 = 4 00000101 = 5

So the answer should be 1+2+4=7.

About your second question: I don't know, sorry.

Nisarg Rajvi
PLUS
Nisarg Rajvi
Courses Plus Student 733 Points
Nisarg Rajvi
Nisarg Rajvi
Courses Plus Student 733 Points

00000000 = 0*0 = 0 00000001 = 2*0 = 1 00000010 = 2*1 = 2 00000011 = 2 + 1 =3 00000100 = 1 + 1 + 2 = 4 00000101 = 1 + 4 = 5

so hence 0000111 would be like 1 + 2 + 4 = 7

Raphael Reiter
Raphael Reiter
6,820 Points
Raphael Reiter
Raphael Reiter
6,820 Points

Thanks Franck :) i understand now

Chris Ward
Chris Ward
12,129 Points
Chris Ward
Chris Ward
12,129 Points

Copy and paste the following into a word processor and set the font to Courier New then print it for your reference...

It goes from 2^7 (128) down to 2^0 (1):

0 0 0 0 0 0 0 0

1
2 6 3 1
8 4 2 6 8 4 2 1
Phil Pickering
Phil Pickering
49 Points
Phil Pickering
Phil Pickering
49 Points

You can retake the quizzes at any time to review your progress. The same questions appear each time so you can always use trial and error to get to the correct answer.

ashad mouhamad
ashad mouhamad
681 Points
ashad mouhamad
ashad mouhamad
681 Points

128.64.32.16.8.4.2.1 this the binary code 00000000 ==> 0 00000001 ==> 1 00000010 ==> 2 00000100 ==> 4 00001000 ==> 8 00010000 ==> 16 00100000 ==> 32 01000000 ==> 64 10000000 ==> 128