a system in 1966 would be in the neighborhood of $500K.

Programming languages available include FORTRAN II, ALGOL 60, and the assembly language known as Meta-Symbol. The FORTRAN system is very compact, having been designed and implemented by Digitek for SDS to compile and run in 4,096 word SDS 900 series machines. To do anything useful in such small memory space, the compiler relies on an SDS architectural feature known as Programmed OPeratorS, or POPS.