By Robert L Hartwig
By William Bolton (Formerly Lecturer, Buckingham Chilterns University College, High Wycombe, UK)
By K.J. Bohlman
By M.P. Horsey
By Barry G. Woollard
By George Kennedy
By Jones, Eric
By Horsey, M.P.
By Leach
By Ian Mackenzie Smith, Kenneth T. Hosie
By John B. Pratley
By Charles M. Gilmore
By D. W. Tyler
By Michael H. Tooley
By S.A. Knight
By D C Green
By Keith Brindley
By Keith Brindley (Freelance writer and journalist on electronics. Independent PC Consultant.)
By R.E. Vears
By John C. Morris
By Dennis Roddy, John G. Coolen
By Will Kimber
By Smale, P.H.
By Paul M. Chirlian
By Rex Miller, Fred W. Culpepper
By Dyckman, Dan
By Green, Malcolm