T/S 2068 and ZX81 ROM Routines Authors Tim Swenson Publication ZXzine Publication Details Issue: 7 Date June 2019 Pages 2-6 Read the article See all articles from ZXzine Issue 7 Comparison of routines in both computers. Products Downloadable Media Related Articles Tags ZXzine, TS 1000, TS 2068 People Tim Swenson