1) Artist cooperative 2) Co-operative in England 3) Material unaccounted for 
[programming language] MUF (short for Multi-User Forth) is a Forth-based programming language used on TinyMUCK MUCK servers and their descendants, including Fuzzball MUCK, ProtoMUCK and GlowMUCK. MUF is the system programming language for TinyMUCK systems. Many fundamental MUCK commands, in fact, are implemented as MUF programs, and built-i... muf is a collaborative of artists, architects and urban designers based in London, England, specialising in the design of the urban public realm to facilitate appropriation by users. ==History== muf were formed in 1994 when they were loaned office space for 6-months in Great Sutton Street, London. They were committed to working in the public realm...
Maximum Useable Frequencymaximum usable frequency
material unaccounted for.