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    1. Let’s suppose you had 10100001 in binary (an 8 bit code). What number does that represent?
      Recall our counting system works as follows….643 = 6 x 10^2 + 4 x 10^1 + 3 x 10^0
      The same idea applies for binary, but the base counting system is 0 or 1…2 digits only not 10 digits.
      10100001 = 1 x 2^7 + 0 x 2^6 + 1 x 2^5 + 0 x 2^4 + 0 x 2^3 + 0 x 2^2 + 0 x 2^1 + 1 x 2^0 = 128 + 0 + 32 + 0 + 0 + 0 + 0 1 = 161

      How many unique numbers can this 8 bit code represent?

    1. We will review base numeral systems next class. And in regards to your previous post the Lecture 1 lesson is listed as completed. It shows up as such on your page so you probably already know.

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