Tonight we attached sensors to our NXT robots. First was the speaker. This program applauds when opened. Second was the light sensor. The sensor stops the NXT robot from moving when it detects a dark spot. Third was the touch sensor. The program drives the NXT robot forward until the touch sensor hits an object, causing the device to brake. Lastly, there was the ultrasonic sensor. The program has the device drive, sending out ultrasonic waves. Once the robot gets too close to an object, the ultrasonic sensor tells it to brake.
Linus Torvolds was the co-developer of Linux. He did something that challenged the developers of other operating systems: he made Linux a free download.
Steve Woziak is the co-founder of Apple computers. He was the main designer of Apple I and Apple II.
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