Microsoft Corp has introduced two new C compilers and announced a $1m product licence and investment agreement with Natural Language Inc of Berkeley, California. The C Optimising and QuickC compilers will be available in September in the US and UK. Microsoft claims that the C Optimising Compiler enables programmers to generate code around 30% faster than the previous version 4. QuickC compiles at 10,000 lines per minute and its debugger allows debugging at source level. The agreement with Natural Language is for developing natural language software based on plain English, but product announcements are a long way off. Natural Language’s basic product is Data-Talker, which generates SQL queries, sorts out which queries to generate and what programs to run, where the data is and what data to get. DataTalker currently runs on Sun workstations, DEC VAX and some 80386-based machines running under Unix.