I have been scanning a few manuals and brochures related to the Alfaskop series of IBM 3270 compatible and Uniscope 100 compatible terminals.
http://www.datormuseum.se/peripherals/terminals/alfaskop Unfortunately very little seems to be saved regarding this series of quite successful terminals. In total around 900.000 units were produced. Starting with the dumb 3100 with delay line memory, to the 3500/ 3700 with a TTL CPU and the the 4100 series with 6800 CPU and finally the 91xx series with 68k CPU (I believe). There is a brief history on the wiki page ( https://en.wikipedia.org/wiki/Alfaskop) One interesting thing with the 41xx series is that it has a general purpose real time operating system described in this manual http://storage.datormuseum.se/u/96935524/Datormusuem/Alfaskop/Alfaskop_System_41_Operating_System_Reference_Manual.pdf This manual refers to a SPL programming Language, and a SPL reference manual, which I am lacking. The SPL language seems to have realtime constructs like WAIT, DECLARE TASK, POST etc. Is there anyone that recognize the language or is it an invention made by Datasaab back in the days? Another interesting feature is that the 41xx series made use of a star coupled 300 kbit/s sort of network. Mainly to communicate with the likewise networked floppy drive or communication controller. The terminal could be configured to work stand alone with a floppy drive or using a communication controller as it seems. Depending on what it was configured for, the terminal could either run various terminal emulations, the Alfaword wordprocessing package or even the UCSD p-system. It would really be very interesting to find any of this software. So if anyone knows anything I am interested.
