'Datamass Pro Windows' software
1996
The Chemical Explorer: Chemical Equilibrium' computer software
1996
Five items of computer software for Amstrad computers
1986; 1987
MD-20 floppy disk QX-20
The Physics Explorer: Gravity ' computer software
1996
'First Control' introductory Windows software pack
1996
' Land and Air' CD Rom by Philip Harris
1996
'First Sense' starter kit
1996
PET PACK Computer Software
1977