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Digital Literacy Computer Basics Computer Basics Binary

Posted by Barbara Vega
Barbara Vega
1,410 Points

what is 00001000 what is 00001000

what,s the binary of 00001000

Joshua Raglione
Joshua Raglione
3,246 Points
Joshua Raglione
Joshua Raglione
3,246 Points

Binary goes by powers of 2✌️ so the one on the far right starts at 1 then to the left of that is 2 then 4 then 8. The answer is 8. Hope this helps you with your binary:)

1 Answer

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

Here's one way to decode binary numbers. Make a column for each digit, and starting from the right, put a "1" and then as you move left put double the value of the column next to it. Remember, right-to-left (:point_left: THIS WAY :point_left:). You'll get something like this, which is a horizontal version of the helper table shown in the quiz:

128  64  32  16   8   4   2   1   <-- 8 columns for 8 digits

Then, put your binary number on the next line, spread into the columns. Now below that, multiply each top number by the binary digit and put the result below. It's easy, since binary digits are either 1 or 0, so you either put the number on top again or zero.

Then finally, add up all the numbers on the bottom row and that's your answer. Like this:

128  64  32  16   8   4   2   1   <-- starting columns
  0   0   0   0   1   0   0   0   <-- multiply by your binary digits
--- --- --- --- --- --- --- ---
  0   0   0   0   8   0   0   0   <-- add these up:  8 + 0 + 0 + 0  =  8

Also, since zeros in front don't count you can skip them. So in this case we really only needed 4 columns.