THIS SOVIET COMPUTER has been FORGOTTEN FOR 30 YEARS!

UPD:
For the background of ES1841 computers in post-disaster Chornobyl Exclusion Zone, watch the first episode:    • Extreme Restoration of a Soviet ES1841 PC....  
About specialized expansion cards:    • Soviet scientific computer cards for ES-18...  
Your requests (trying the CP/M, Error 2000, playing Tetris and so):    • Playing ORIGINAL TETRIS and other classic ...  

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ES-1841 is a Soviet i8086 clone-based IBM PC/XT-compatible computer. The same were used in the Chornobyl Zone in post-disaster works e.g. by SP Spetsatom based at Jupiter factory in Pripyat (see the Ep.1 for details).
This particular machine is NOT from the Zone but fully identical to those remaining in Chornobyl, and has been assembled from 3 different sets found all across Ukraine. In this episode, we will start a restored computer in full configuration for the first time in nearly 3 decades! We will review and try some historic programs and, for sure, will play the legendary Digger!

Contents of this video:
0:00 – Intro
0:49 – Getting software was a challenge
1:20 – Don't forget – there is much more in the full version
1:30 – Launch set-up configuration review
3:10 – A pretty special keyboard
3:58 – How we discovered corrosion of gold
4:30 – POWER ON! And BIOS memory test
5:15 – Booting and trying the Alpha-DOS operation system
7:10 – About the standard software suite
7:30 – DELOGRAF business graphic app from ±1987
13:00 – Info-Gamma dosimetry program from Chernobyl '88
18:00 – Printing a dosimetry report on a matrix printer
18:38 – Building radiation charts
19:07 – CommanDOS file manager
21:46 – Trying MS-DOS 3.30 and Volkov Commander
22:37 – A calculator from the USSR Ministry of Energy
23:21 – Playing DIGGER!
27:15 – M86 and CP/M operation systems
28:33 – Outro