Exploring the ZX81 ROM (Part 5) AuthorsGary HearnPublicationComputer Trader MagazinePub DetailsComputer Trader Magazine Sept 1984DateSeptember 1984Pages65-66Read the articleSee all articles from Computer Trader Magazine Sept 1984 Related ArticlesZX81 ROM Explored (Part 6) Tags1984 TS 1000 PeopleGary Hearn