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This is my now finished home built Z80 based computer in an earlier state. 32K RAM, 16K ROM, 4 MHz.
Yellow wires are address wires, red wires are data wires and black wires are miscellaneous.
I began building it in the beginning of 1990 as an evening activity with the local Young Scientists club. At the time of this photo It's almost finished, apart from the clock-circuit, programming and debugging. The only hardware it lacks is capacitors for the clocks and the IC's, and some wiring for the serial interface.
Update May 14 2011 - I found the block drawing for it and the design for the clock circuit so I now know what capacitor I need to make it tick. Yay!
Update June 2021 - Finally got it working after thoroughly checking all the wirings and getting inspiration from the vast resources of internet.
Out-of-school youth learn how to use computers at the Notre Dame University in Cotabato City in 2007. USAID provides alternative learning and livelihood skills training opportunities to out-of-school youth in areas most affected by poverty and conflict in Mindanao.
The computer commons is two levels high and rarely are there empty computers. Open 24 hours a day, students can access the commons using their student ID.
Since I got me a promotion, I need to be a little more mobile these days. Also now that things like VMWare make it astonishingly easy to run the few windows only things I have to deal with I'm finally free to get back to working on a Mac again! Whoo hoo! I can't tell you how liberating it is to be working every single day in an OS that feels like it was made this century.
Anyway here's my new lil' work setup. So far, working like a charm!
The first program the kids used was Wonder Pets join the Circus. A great program from the Apple Store that helps teach colors, math, spelling, and basic mouse skills.
I got out my Dad's Dragon 32 as 'research' for my Retrocity article on MOREtotheGAME.
Unrelated: Today, as I was walking around town posting suspicious-looking items, I saw a sad sight. Borders is closing down, and half the shelves were empty. A long queue of heartless scavengers were making the most of the bargain prices. Everything must go, apparently.
Here is my computer "classroom" where I tutor one-on-one computer classes at a regional library as a volunteer. I'm called a Computer Coach.
This computer lived on a lino floor behind a counter in a business. There were covers missing on the rear of the case. There were also other holes in various places. The computer was left running most of the time - offering a nice warm environment.
Result? Mice moved in, bugs moved in, geckos moved in... the system was a mess internally. Some of the liquid wasts of these infecting mice/bugs/geckos/whatever had settled on the motherboard. I guess some of it was caustic enough to start eating away at the PCB tracks.
Title: Computer Science
Date: 1970
Description: Cyclone Computer
Image ID: 13-07-F_ComputerScience_1056-04-04
Copyright 2016, Iowa State University Library, University Archives
For Reproductions: www.add.lib.iastate.edu/spcl/services/photfees.html
I made this cake for a for a man who is always researching on the computer, and always fixing them for everyone in town.
It was a chocolate cake with mocha mousse center.
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