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Interesting Z80 project using a real Z80 but for all I/O using an MCU 
Tuesday, August 6, 2013, 09:19 AM
Posted by Administrator
Very nice project, the Mini80. A real Z80 CPU is used (this is important for speed and compatibility), but all I/O is done by a Parallax Propeller chip.

Very small footprint, simple logic board design ... what else (except a build in VGA interface) do you want ?
This is a picture from the prototype board:

And this is the related CP/M boot screen:

It can run CP/M 2.2, using disk images from a larger "pack" file.
Hopefully his transfer utilities (for single files) will be implemented soon.

Just take a look at the Micro Vibe Site and that Mini80 article ... o-overview
for an introduction.

I recommend visiting his site (see also "related link") !
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NSA compatible devices/software .... easier for customers to get them now ;-) 
Friday, July 19, 2013, 07:50 PM
Posted by Administrator
Because NSA will use too much energy to wiretap aka get the data from all the people around the world (even from the ones who are NOT evil), I propose a standardized interface for all future devices, so it will be much easier to have all the data stored in Fort Meade.
This needs a logo certification program also, so we (all the people who are being wiretapped) know in advance that the devices or software solutions are 100% compatible with that above suggested interface. I also made an easy recognizable logo for this certification program:

Next time you buy electronical devices or software, be sure to get a certified "PRISM ready" one !

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Dr. Dobb's Z80 Toolbook (David E. Cortesi) can be read online ... 
Wednesday, July 3, 2013, 08:00 PM
Posted by Administrator
Just take a short break and visit for a deeper look into the Z80 coding secrets with Doctor Dobb's Z80 Toolbook.
If this link doesn't work, try this one (
Beware the loading time for this page (all things are listed on only one large page !), but enjoy these mostly elegant code snipplets for your Z80 CP/M system... even on emulators.

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All things got together, but not yet connected due to the missing (in)famous Y-cable 
Thursday, May 30, 2013, 08:00 PM
Posted by Administrator
Yeah, I got my Apple 5.25 Floppy Drive (A9M0107)

and also the two DSUB connectors for the still missing Y-cable.

Now I have only to rebuild the floppy cable and then I should be able to run my Apple IIe card also with (real) floppies.
Meanwhile I can show only a starting screen of the card itself :-(

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Quality sinks continuously ...this time: CISCO 
Thursday, May 16, 2013, 09:00 AM
Posted by Administrator
As we all know, most of the products today are produced in a cost efficient way.
Because of this, vendors always looking for a chance to produce things cheaper.
But because this happens, also quality goes synchronously down.

This happened to Linksys Router (think about forced cisco cloud account usage, which was changed back in October 2012, but also missing features, low quality and early defects).

Like other vendors, Cisco devices does also have a long list of vulnerabilities:

Now - on top of the above listed facts - there is another great achievement Cisco reached:

They aquired Scansafe a few years ago, their services are named now "Cisco Cloud Web Security" (it seems also be related with the Linksys Router Configuration issue, see above).
I thought they have a team of agents who edits their web filter entries. So they will be able to achieve a defined level of quality at least.
But I was wrong. Their webfilter service seems to be made only by searching keywords, not monitored by humans. My own website here ( and also this blog ) is now categorized as "virus site". THIS IS ABSOLUTELY RIDICULOUS. I am offering infos about detecting virus, but I do not spread viruses. Cisco, you failed verifiable 100%.

But do you really expect Quality from Cisco ?

P.S.: This was valid for more than one year. Now it's not more categorized as a malware site, due to my continuously sent requests.
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