While my heart beat faster I turned to whisper into his face."What are you doing?" You like taking risks," he said against the side of my face.He hooked his thumbs into my waistband and pushed both my jeans and my underwear down to the middle of my thighs with two strong, swift tugs.My dick sprang out into the space between me and the locker and I could feel the fabric of Eric’s training pants rasping against my bare ass. "So let's take a risk."I stood very still, both hands now hovering uncertainly in front of me as Eric rested his face briefly against my back. I could hear the soft fabric of his pants rustle, then he was standing again, pulling me back roughly against him with both hands on my hips. I could feel his long shaft burning in a line across my ass, throbbing against my lower back. The sensation melted into the more general heat of his body as he crushed us together, an arm around my chest and a fist around the base of my dick.“We’re gonna do this hard and fast," he said.. ”Beth spoke up, “I know that. Binary means 2. Right?”“Yes, that’s right.“Computers use binary bits. A bit can be thought of as a coin sitting on a table. It’s either heads or tails, or for computers, 1 or 0. It’s convenient to group 4 binary bits into 1 hexadecimal digit.” I wrote 0000 by zero all the way down to 1111 by F. Then pointing to ‘4 0100’, “This is not one hundred. And by the 8 this is not one thousand.”I wrote the numbers 8, 4, 2, and 1 over the binary numbers. “See how 1001 is 8+0+0+1 or 9. Notice the pattern of the binary digits from 0 to F. This will be on the quiz.”They looked shocked. Hiding my hex and binary numbers I wrote 1100. “Quickly now, what is this binary number in decimal?” I looked at my class and waited... Finally, Beth said, “12?”“Are you sure, Beth?”“Well... 8 plus 4 is 12. Is that right?”Yes, you are correct. Chrissy, what is the hexadecimal digit?” I continued to point as Chrissy wrote something in her notebook.She said, “C.”“Good. That is.
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