Category Archives: Bulgaria

Stone wallpaper

Here is a macro picture which I took during my last mountain hike in “Elena”.


Rarely something catches my eye in such details worth shooting, but this stone surface was unique. The pic was taken with my phone – LG G4 and ‘normalized’ with GIMP (Colors->Auto->Normalize). I made a wallpaper out of it, and it’s currently used on my desktop.

The wallpaper is available in the following sizes:

If you can’t find your size, drop me a comment and  I will see what I can do about it 🙂 Feel free to use the picture for whatever purpose  you see fit, just drop me a note or mention me as an author.

Diskettes for the Pravetz

I finally got my hands on some 51/4” diskettes for the Pravetz. They are in good condition and full of old games and programs. There is also a pack of cleaning diskettes for the floppy drive. I’m still looking for more.

20141031_155918I’m inpatient to find a monitor, to see if this dinasour runs.


Restoration of Pravetz-16 Turbo (IBM PC XT compatible)

My software development career started 20 years ago. It’s sound crazy, but when I was 8, I was introduced to my first computer and Turbo Pascal.

Turbo Pascal DOS IDE

Turbo Pascal IDE

My first computer was Pravetz-16. It was something new and interesting for me, and I was hooked immediately.

Years and technology changed, the old Pravetz died from natural causes and was thrown for recycling.

Now almost 20 years later I felt the urge to have my old computer back and stated searching.  It was hard and long search until finally I saw an ad that a scrap depot is selling an old Pravetz computer. Not wasting time I called them and brought it for 100 leva ( around 70 USD ). It was the computer only, with ought the peripherals. Before the deal  I asked them to try turning it on. They said it’s starting, so I have it delivered to me.


Front view of the PC

Except from being full of dust, dead spiders and dirt all around and with some minor hardware problems like the serial board apparently dead. This specimen was almost authentic. It’s still has all the marks from the factory and even a warranty card and instruction manual for the floppy disk.


Warranty card. Expired 24 years ago

From the warranty card I found out that this PC was one of the last produced before the collapse of the communist regime in Bulgaria. The production date is 12.12.1989 and it’s apparently the turbo version with the following specs:

CPU: 80286 at 12 Mhz
HDD: 20 MB
5 1/4″ Inch Floppy drive
LPT printer port
COM port
CGA video card (VDO-3)

The floppy drive instruction manual

Floppy drive instruction manual

The support contact information

Support contact information sticker

The model sticker at the back

Model sticker at the back

Inside of the PC

Inside of the PC

The power switch

The power switch

View from the back. You can see couple of dead spiders over the video card

View from the back. You can see couple of dead spiders over the video card

It took me 7 hours to disassemble the PC, clean it screw by scree and put it back together. Every non electrical part was washed and the electrical ones were cleaned with alcohol solution and an old tooth brush. The old Pravetz now shines as new.

20141029_211651 20141029_211720I also found a keyboard yesterday, and ordered a pile of floppy disks. They should be here soon.

The keyboard

The keyboard

Now I’m looking for a CGA monitor, to be finally able to turn it on and see will it boot. Meanwhile the keyboard will be disassembled and cleaned.