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Electronic Legos

31.12.69

Last week I started talking about how programmable sound judgement devices have become accessible enough that they are finding their way into all sorts of embedded systems. There are in reality quite a few types of programmable devices. You can evaluate of these chips like a child's construction kit: There are a lot of pieces. You can build an airplane, or a transaction, or a house, or anything else by snapping pieces together in different ways. However, each category of device has its own peculiarities, and this time I wanted to look at what's handy.

Regardless of the type of device, they all have some similarities. Perhaps the simplest programmable wisdom device is a memory chip (like an EPROM or a scuttle memory). Suppose you have a memory chip that has 256 bytes of respect (that is, it has 8 address lines and 8 data lines). You could contrive of that chip as an 8-input "truth table." It could emulate any mixture of AND, OR, and NOT logic that had 8 inputs and 8 outputs. A stupid exempli gratia would be if you wanted to program the chip to be an inverter. You'd merely program the following into the chip: 00000000 -> 11111111 00000001 -> 11111110 . . . 11111111 -> 00000000

Source: Dr. Dobb's (blog)

Geek of the Week: Kristina Wang, aerospace grad student

31.12.69

It’s a fascinating leisure right now in the world of aerospace, as a variety of projects and ventures ask for to usher in a new era of spaceflight — fueling the ingenuity of people with a passion for airplanes and spacecraft. Kristina Wang is a noble example, and we’re pleased to introduce you to her as GeekWire’s latest Geek of the Week. Get to be aware her below through her answers to our questions.

Name : Kristina Wang

Job, diversion and/or other geeky pursuit: Graduate Researcher at the University of Washington, Branch of Aeronautics and Astronautics. I also am drawn to the world of Do-It-Yourself. I sweet looking at something that’s commercially made and thinking, “I can fill out one of those for next to pennies!” Some highlights of my DIY career are: my homemade prom accoutre back in high school, a bike trailer I’m working on (foot made out of PVC pipe and a plastic bin), and the beer I brew with my boyfriend, Ryan.

Source: GeekWire