ZX81/TS1000 Tips Authors Don Lamen Publication The Data Expansion Pub Details The Data Expansion v5 n7 Volume: 5 Issue: 7 Date July 1988 Pages 21-22 Read the article See all articles from The Data Expansion v5 n7 Products Downloadable Media Related Articles Image Gallery Tags The Data Expansion TS 1000 Type-in program ZX81 People Don Lamen
