http://static.tvtropes.org/pmwiki/pub/images/bk0011_7750.jpg

One of the most peculiar {{Home Computer}}s of its time, Elektronika BK series is a shining example of what happens when you try to produce consumer goods in an economy powerful, but not really suited for them. While generally successful and well-loved design, it was a fruit of so many compromises and inconsistencies, that it is generally better identified by its flaws than its strong points even by its fans. One more of the general Soviet horde of PDP-11 clones, it is generally thought to be spawned by the governmental program of computer literacy of 1985, just like BBCMicro and ZXSpectrum, but the real story is much more complex and interesting.

The computer itself is inextricably connected to its {{CPU}}, a rather successful chip generally known as 1801 series. Ironically, the very first iteration of the chip, released in 1981, wasn't a PDP clone in the slightest, being a microprocessor variant of the popular indigenous [[MainframesAndMinicomputers Elektronika NC mini]]. To demonstrate its abilities, the developers quickly knocked up a prototype machine, a quick and dirty solution, not really well thought out — just a CPU and a bunch of a support circuitry. Unfortunately, by that time the organization that developed NC minis had already lost in the powergames of Soviet industry, and the CPU [[ExecutiveMeddling was ordered to be made compatible]] with the PDP line.

As it was a very solid design for its time it was highly sought after by the industry, due to general lack of good [=CPUs=] in the SovietUnion. The demo machine also wasn't lost in the process — while very weird in some senses, it had a virtue of being cheap and simple, so the aforementioned school program provided a good incentive to put it into production, so it was quickly polished (somewhat), and released. The release happened in 1985, both for schools and for general public, for the whopping 650 rubles (while the average wage at the time was about 150 r/month). Still, it was immediately popular even if it was supplied "as is", almost without any software or development tools. However, as it was generally compatible with the larger industrial [=PCs=] and minis, the thriving cottage industry for software development and hardware upgrades sprang up at once.

Obviously, most of this software was games. Generally created by the one-man "bedroom coders" (another parallel to the British situation), these were very popular, but generally not very polished titles, and thus are not very well known now. Another problem was the machine's limitations -- while housing a monstrous 16-bit CPU (basically, a 286 analogue in the terms of processing power), it has a pitiful 16K of {{RAM}} and what basically amounted to the [[SoBadItsHorrible CGA-level graphics]] with four colors in low-res mode (256 x 256) and a monochrome high-res mode with 512 x 256 resolution. Still, some games were rather good, and in its late days even such well-known games as ''[[{{X-COM}} UFO: Enemy Unknown]]'' were ported onto it (Battlescape part only, based on a Spectrum port).

Later updates expanded the machine's RAM to the more respectable 128K, and added a floppy disk controller, but didn't address the graphics problem -- the only real upgrade was introduction of two VRAM pages and some hardwired color palettes, because its {{GPU}} was still the same chip as the early 1981 demo machine and it couldn't really be upgraded because it was in fact a fully used up 600-gate ULA (making increases in functionality physically impossible), and there weren't any other domestic alternatives at reasonable price. Still, it ran PDP-11 soft pretty well, and had a Q-bus slot, so it found a widespread use in business and industrial applications as well (as a cheaper alternative to {{Elektronika-60}}), so some are still in use even today. And of course, there's retrogaming and emulations.
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!!Specifications:

[[foldercontrol]]

[[folder: CPU ]]

* [=K1801VM1=] CPU, 16 bit PDP-11 compatible, 3-9 Mhz (it was easy to overclock)

[[/folder]]

[[folder: Memory ]]

* -0010[=/=] -0010.01 models
** 16K {{RAM}}: It was generally slow and unreliable, which [[ExplosiveOverclocking limited CPU overclocking options]].
** 16K {{VRAM}}
* -0011(M) models
** 128K RAM
** 32K VRAM

[[/folder]]

[[folder: Display ]]

* 512x256 high-res mode (4 colors)
* 256x256 low-res mode (2 colors)
* 64x25 and 32x25 text modes: These were not really text modes, but were BIOS-simulated by outputting text on respective graphic planes.
* Hardware scrolling

[[/folder]]

[[folder: Sound ]]

* Onboard piezo speaker
* General Instruments AY-3-8910 was often added by enthusiasts, most games expected to see it
** Three channel polyphony
** Square or noise waveform generators at 10 octaves
** Programmable ADSR
** Eight-bit sample playback
* COVOX Speech Thing also was a common addition

!!Games

As the game developnemt on this computer was essentially totally homebrew, most were either ports or clones from other platforms. No great franchises started here, but those who strived are still remembered (by some).
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