Countdown to Doom 1984 Acornsoft Hopper 1984 Acornsoft Snapper 1983 Acornsoft Starship Command 1983 Acornsoft Electron Demonstration Cartridge 198? Acorn Tree of Knowledge 1983 Acornsoft LISP 1984 Acornsoft Logo 1985 Acornsoft ISO-Pascal 1985 Acornsoft Click 1990 Slogger Starspell 1989 Slogger Starspell & Starword 1989 Slogger Starspell & View 1989 Slogger Stop Press 1987 Slogger View 1984 Acornsoft ViewSheet 1984 Acornsoft Advanced Plus 3 1988 P.R.E.S. Advanced Plus 4 1988 P.R.E.S. Cumana Floppy Disc System 1984 Cumana Pegasus 400 1987 Slogger Sound Expansion v1 1988 Project Expansions Sound Expansion v3 1989 Complex Software Systems