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16 May 2014

Original Apple 1 setup – demo of a working piece of history

This is one of 6 known working original Apple 1 personal computers from 1976. There were about 200 Apple 1 ever built and 43 units are identified to exist to date (08.2012). This Apple 1 had been originally restored and framed in 1993 by an Apple enthusiast. I restored this machine in 2012 to fully working condition (there was a faulty PROM) and attached an ASCII keyboard, monitor, power supply and an ACI (Cassette Interface). In the demo the machine executes some test programs and loads from cassette BASIC and a graphics demo.

The original Apple 1 came only as ready built motherboard: there was no keyboard, no case, no monitor and no power supply included. The buyer/user had to find and attach the peripherals himself.

The machine is pretty solid now – I booted this A1 more than 50 times in the last 2 weeks and it worked flawlessly.

[via]

Original Apple 1 setup – demo of a working piece of history - [Link]

27 Oct 2011

An Open Hardware project in Washington, DC by Kevin Green

UPGRADE INDUSTRIES was founded out of necessity, because I couldn’t keep waiting for a company to design the product I needed.

Let me take you back to a time when I was just an undergraduate engineering student, trying to make ends meet as the captain of one of Virginia Tech’s lesser-known student design teams.

My team and I were designing a solar-powered robot that would use a compass and accelerometer to navigate its environment. We didn’t have much design experience back then, but we needed an easy way to combine several different circuit boards into one for our robot. We also needed to make sure that we could swap them out in case one was destroyed or burnt out, which was known to happen from time to time.

Rather than design our own circuit board with all the parts permanently attached, I designed a very small motherboard for all the various third party sensors to plug in to. This was a huge hit with the team and also a time saver, since we could now build our system piece by piece and choose which parts we wanted to design and which would we would buy.

Expanding on that idea, I added a breadboard, standardized the size of the ports, and stylized the design so it would look as good as the rest of my projects. After researching existing products like Arduino or Beagle, I made it a point to fix certain weaknesses that I felt were holding those platforms back such as weak current allowances, fixed processors, and large add-ons.

BoardX: The Open Source Miniature Motherboard - [Link]

31 Dec 2010

Crawford rescued his motherboard using the Bus Pirate and FlashRom. [via]

A friend gave me a Gigabyte EP35C-DS3R motherboard, that had succumbed to the dread ‘infinite reboot’ issue. The Interwebs reported this was usually a bad bios, so I decided to re-flash the bios using the great write-up here.

Bus Pirate and Flashrom save a motherboard – [Link]



 
 
 

 

 

 

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