Matching Pairs DefinitionsOnline version Students match a term to its definition by Re Furn 1 an expert 2 constructive feedback 3 machine code 4 a market survey 5 a computer mouse 6 a subject-specific term 7 a pathogen 8 a bug is a person who has studied a subject deeply for a long time. is an organism that can cause disease in another organism. is a device for converting hand movements into digital signals. is research to gather information about consumers products and services. is a mistake in a computer program that stops the program doing what it should do. is a word or phrase that is used in one subject area but not in others, or that has a different meaning in different subject areas. is comments about what is good and what can be improved. is a system of instructions that computers can follow.