Digital Electronics: Homework #2

  • In decimal: 1(10) + 1(10) = ?(10)

    In binary: 1(2) + 1(2) = ?(2)

    1(10) + 1(10) = 2(10)

    1(2) + 1(2) = 10(2)

  • Add these two binary numbers together: 1010(2) + 1000(2) = ?(2)

    Now, Subtract these two binary numbers: 1010(2) – 1000(2) = ?(2)

    1010(2) + 1000(2) = 10010(2)

    1010(2) – 1000(2) = 0010(2)

  • Convert this binary value into decimal: 1110(2) = ?(10)

    Convert this decimal value into binary: 31(10) = ?(2)

    1110(2) = 14(10)

    31(10) = 11111(2)

  • How can LEDs represent binary numbers?

    Binary numbers are made up of only two digits: 0 and 1. LEDs can represent these two values with the simple on/off. Off can represent 0 while on can represent 1.

See, I posted the answers for the homework for Lesson 2 today as well.

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