This video explains the theory behind how computers count and shows, in simple steps, how you can build your own 4-bit computer using logic gates which are made of individual transistors. The final result is a 4-bit adding computer which is capable of adding together two numbers and showing the result. If you’ve ever been [...]
Archive for the ‘Do It Yourself’ Category
Making your own 4 bit computer from transistors
Posted by wiz on July 28th, 2010
Posted in Do It Yourself, Gadgets 
Tags: computer, DIY, logic gates, make yourself, projects, transistors 
No Comments »Browse a list of notable temperatures ranging from absolute zero to the hottest theoretical temperature in the universe.
Posted by wiz on July 7th, 2010
Glenn Elert is Research Coordinator and Webmaster for the Physical Science Department of Midwood High School at Brooklyn College. He also runs hypertextbook.com, a scientific Web resource. A Sense of Scale At roughly minus 460 F, absolute zero is abysmally cold, yet at least we can imagine it. Being only a few hundred degrees below [...]
Posted in Do It Yourself, Tech Tags: fun, kelvin, pbs, physics, scale, science, temperature No Comments »OrCAD / PSPICE Tutorial – Free pdf download !!
Posted by wiz on July 1st, 2010
OrCAD is a suite of tools from Cadence for the design and layout of printed circuit boards (PCBs). Here are a few tutorials which you can use: 1. http://www.ece.rice.edu/~jdw/orcad/OrCAD_Tutorial/docs/tutorial.pdf This document will give you a crash course in designing an entire circuit board from start to finish. This will be a very small and simple circuit, [...]
Posted in Do It Yourself, Tech Tags: download, electrical, electronics, engineering, free, orcad, pcb, pdf, pspice, tutorial 1 Comment »Breadboard Basics
Posted by wiz on May 10th, 2010
Everything in electronics starts with a breadboard. Many engineering students aren’t taught this properly in colleges. Here are a few links which would help: intro: http://www.kpsec.freeuk.com/breadb.htm or http://www.kpsec.freeuk.com/docs/breadbrd.pdf here is a explanatory YouTube video: here is a nice java based simulator for breadboards: http://www.cs.york.ac.uk/netpro/bboard/
