David Threlfall About Roles Name : David Threlfall Software Role Publisher Type Year HiSoft COLT Compiler (Unknown) HiSoft Programming: BASIC 1985 ZX Compiler MMII.d (Unknown) Threlfall & Hodgson Programming: BASIC 1984 MCoder II (Unknown) PSS Programming: BASIC 1983 MCoder (Unknown) PSS Programming: BASIC 1983 Change Request You can request changes or additions here. You can upload files. All change requests are actioned as quickly as possible and you will be informed of the result. Details Files Your Name * Email * Details Your browser doesn't have Flash, Silverlight or HTML5 support. Submit Thank you for your change request. We will respond as soon as possible.