John Alexander Coll was a British computer specialist. While teaching physics at Oundle school he built a number of computers and was involved in Micro Users in Secondary Education (MUSE). He helped write the functional description for the BBC Computer and played an important role in convincing senior management at the BBC that it could be done. He later wrote the BBC Microcomputer User Guide which was supplied by Acorn Computers with the BBC Micro and appeared regularly on the television programmes Making the Most of the Micro and Micro Live which featured the computer.