Complex sentence: Throughout the 1980s John Molloy occasionally wrote articles for magazines such as "Computer and Video Games" before relocating to the United States in the 1990s to work on other music technology development projects.
Split into simpler sentences: Throughout the 1980s John Molloy pursued a parallel career in journalism, occasionally contributing articles for magazines such as "Computer and Video Games". In the 1990s he relocated to the United States to work on other music technology development projects.