Hi Yesterday I picked up a Datasaab D12. Which I didn't know existed until then. Pictures here: http://imgur.com/a/vPTZw It's a small desktop computer intended for small business accounting and invoicing. It's built arround an intel 4004 and has room for expansion cards for memory and "customer roms". The service guide mentions a "two level" environment with a "basic" level and a "customer program" level. I'm hoping it means there is a Basic interpreter but I'm not convinced. The manual also mentions a "D12 assembler" as the develoment environment. It's apparently a subsystem that comes in a nice attache case: http://imgur.com/QQUrcGh It's actually made by Facit and may go under that name. Does anyone know more or have manuals? Regards, Pontus.