 The term "PRINTWARE" was created by Peter Downs as a trade mark to cover the concept of software that was developed to enable designs to be sent to printers as 'nets' that could be cut out and folded to construct models.A version of Designer Castles was released in 1991 for the Acorn Archimedes systems using RISC OS.Unlike the BBC Micro version, the program utilizes the existing RISC OS Wimp environment and printer routines without need for a separate support module.