MURPHY'S LAW MULTIPLEXER A device that collects data from many individual sources and arranges the information for simultaneous transmis- sion over a single network. MULTI-PROGRAMMABLE MEMORY DEVICE A memory device containing software instructions or data that can be changed in the device once programmed. MULTI-START THREAD A screw thread with two or more threads. For this condition, pitch is equal to the thread lead divided by the number of thread starts. MURPHY'S LAW If anything can go wrong, it will. 177