Skip to main content
21 votes
Accepted

What are these keys on the БК-0010-series keyboards, and what do they do?

Not sure if it's the same, but my BK-0010.01Sch keyboard works like this: Key Rus Eng Description / Function ПОВТ повтор Repeat Repeat last key pressed КТ Конец Текста End-of-text Discard edit line ...
Raffzahn's user avatar
  • 224k
18 votes
Accepted

What causes the monitor to reduce to four lines on BK 0010 Focal?

After pressing "AP2+CБP" key combination computer switches to extended memory mode, in which screen is reduced to 1/4 of original size giving about 12Kb memory of screen RAM to user (extending user ...
Алексей Киров's user avatar
18 votes
Accepted

Were there any LSI-11 like home computers outside of Russia?

The Heathkit H11 was available either as a kit or pre-assembled. It never became really popular in the West, but it was one of the most powerful PCs available in 1978. It used the LSI-11 small format ...
RichF's user avatar
  • 9,336
17 votes

What does 'try again' mean in Unix v6?

When the shell executes an external command (i.e., not something like cd or shift), it forks the process. The fork system call returns twice: once for the parent and once for the child. The parent ...
Omar and Lorraine's user avatar
13 votes
Accepted

What is the difference (if any) between these two expressions in FOCAL?

Not really an answer, but posting as an answer since I need the space to work in. Working through both cases... FITR(10 x FABS(FRAN())) FRAN gives (-0.9999, 0.9999) FABS gives (0, 0.9999) x 10 gives (...
dave's user avatar
  • 35.6k
11 votes
Accepted

What does 'try again' mean in Unix v6?

So, now having got the shell script to run, I can say the following: bkunix does not recognize comments with # or shebang #! Under normal circumstances running: sh {filename} where the file starts ...
harlandski's user avatar
  • 2,953
10 votes

What are these keys on the БК-0010-series keyboards, and what do they do?

АР2 I have no idea what it could mean I was trying to edit it into Raffzahn's (otherwise good) answer, but it looks like it's easier to answer this tiny part of the question in a separate post. АР2 ...
Quassnoi's user avatar
  • 493
9 votes

Why do BK computers have unusual representations of $ and ^

The solution is rather simple, as the BK is using KOI8 with Graphic symbols in row Ax/Bx. KOI8 is somewhat similar to ISO 8859, as the lower 128 symbols are equivalent to ISO 646-IRV (*1,2,3,4). ISO-...
Raffzahn's user avatar
  • 224k
9 votes

Were there any LSI-11 like home computers outside of Russia?

It's possibly a stretch, but the General Instruments CP1600 which was in the Intellivision, though otherwise unsuccessful, was based on the PDP-11 architecture. The Intellivision was a product of ...
Tommy's user avatar
  • 36.9k
7 votes

Was Vilnius BASIC cross-platform?

Well this certainly isn't exhaustive, but from what I can see the answer is no. I still find it fascinating that the Soviet basic school computer was a PDP-11 in a micro format. It makes me wonder ...
Maury Markowitz's user avatar
7 votes

Were there any LSI-11 like home computers outside of Russia?

There was Terak 8510/A - a graphic workstation with the LSI-11 compatible processor, a graphical frame buffer (hardware-scrollable the same way as in the BK-0010), and a text mode with downloadable ...
Leo B.'s user avatar
  • 19.2k
6 votes

What causes the monitor to reduce to four lines on BK 0010 Focal?

From this page - It is in a section focused on BK0011, but symptoms are very similar: It really had 32KB RAM onboard but by pressing the 'Expanded memory' button you could send it to the mode when ...
Martin Maly's user avatar
  • 5,555
6 votes
Accepted

Was Vilnius BASIC cross-platform?

Definitely not. Vilnius Basic was created specifically for the 16bit K1801BMx chip family, and by and large was a port of MSX Basic for this CPU. Porting it to 8-bit machines was impractical due to ...
DmytroL's user avatar
  • 2,172
5 votes

What is the difference (if any) between these two expressions in FOCAL?

I'm pretty sure that the answer is that the last line has been modified. There is no difference in function as demonstrated by @another-dave but the second line 08.10 S C=FITR(5*FABS(FRAN()*2))-4 is ...
JeremyP's user avatar
  • 11.8k
5 votes

What are these keys on the БК-0010-series keyboards, and what do they do?

I would like some clarification to the other existing answers. There was no "insert" mode of inputting text. The only mode was "replace" which was also the default mode on MSX ...
Anixx's user avatar
  • 1,547
4 votes

What is the difference (if any) between these two expressions in FOCAL?

So having carefully studied both the version of the program I first presented, and the one JeremyP drew my attention to in the DEC PDP-8 Handbook, I can give something more of an answer about how ...
harlandski's user avatar
  • 2,953
4 votes

What is the difference (if any) between these two expressions in FOCAL?

[...] I have not been able to see any obvious difference I suppose the difference is in how that value is meant to be used, which translates to program maintainability. See line 5.20 in the original ...
Igor G's user avatar
  • 141
4 votes

Were there any LSI-11 like home computers outside of Russia?

There were one-chip versions both of the PDP-8/LSI-8 (the models are called DECmate, using the Intersil/Harris 6100 chip) and the PDP-11/LSI-11 (J-11 or "Jaws" chip, used in a range of PDP-11 models). ...
dirkt's user avatar
  • 27.4k
2 votes

How to connect Elektronika BK-0010 to an RS-232 interface?

Lithuanian computer ELEKTRONIKA BK 0010 Was there really a Lithuanian version? The BK-0010 Monitor offers, as far as I know, a basic RS-232 type interface, please see this (Russian) article (English ...
Raffzahn's user avatar
  • 224k
1 vote

Where can I find info about OS/A WASP operating system for Soviet BK series computers?

A HD controller for the BK series I used to have was "optimized" by omitting port inverters. Therefore, every byte of data on the physical disk images needed "XOR 0xFF" to arrive ...
Leo B.'s user avatar
  • 19.2k
1 vote

Were there any LSI-11 like home computers outside of Russia?

Back in to 80's DEC themselves had the PDT 150 which was an office version of our Lab PDP11/03's http://www.computerhistory.org/collections/catalog/102681914 It could have been used as a home ...
Neuromancer's user avatar

Only top scored, non community-wiki answers of a minimum length are eligible