Don Priestley
Don Priestley ( born 1940 ) is a video game programmer who wrote for the ZX81 and ZX Spectrum between 1982 and 1989 . 
<triplet> Don Priestley <subj> 1940 <obj> date of birth <triplet> 1982 <subj> 1982 <obj> point in time <triplet> 1989 <subj> 1989 <obj> point in time